diff --git a/networks/ethereum/devnet/__tests__/noethers.test.ts b/networks/ethereum/devnet/__tests__/noethers.test.ts
index 89e7f717..0065fba3 100644
--- a/networks/ethereum/devnet/__tests__/noethers.test.ts
+++ b/networks/ethereum/devnet/__tests__/noethers.test.ts
@@ -146,21 +146,17 @@ describe('sending Tests', () => {
   });
 
   it('should send ETH from sender to receiver via EIP-1559, and check balances', async () => {
-    // 1) 先查询发送方和接收方初始余额
     const beforeSenderBalance = await signerSender.getBalance();
     const beforeReceiverBalance = await signerReceiver.getBalance();
 
     console.log('Sender balance before:', beforeSenderBalance.toString());
     console.log('Receiver balance before:', beforeReceiverBalance.toString());
 
-    // 2) 准备转账金额 (示例：0.01 ETH)
     const valueWei = 10000000000000000n; // 0.01 ETH
 
-    // 3) 发送前再次查询发送方余额
     const currentSenderBalance = await signerSender.getBalance();
     console.log('Sender balance right before sending:', currentSenderBalance.toString());
 
-    // 4) 使用 EIP-1559 方式发送交易
     const { txHash, wait } = await transfer.sendEIP1559TransactionAutoGasLimit(
       receiverAddress,
       valueWei
@@ -169,28 +165,23 @@ describe('sending Tests', () => {
 
     console.log('EIP-1559 sending txHash:', txHash);
 
-    // 5) 等待交易上链并获取回执
     const receipt = await wait();
-    expect(receipt.status).toBe('0x1'); // '0x1' 表示交易成功
+    expect(receipt.status).toBe('0x1');
 
-    // 6) 检查交易后余额
     const afterSenderBalance = await signerSender.getBalance();
     const afterReceiverBalance = await signerReceiver.getBalance();
 
     console.log('Sender balance after:', afterSenderBalance.toString());
     console.log('Receiver balance after:', afterReceiverBalance.toString());
 
-    // 7) 验证余额变化
-    const senderDelta = beforeSenderBalance - afterSenderBalance;     // 发送方实际减少的金额
-    const receiverDelta = afterReceiverBalance - beforeReceiverBalance; // 接收方实际增加的金额
+    const senderDelta = beforeSenderBalance - afterSenderBalance;
+    const receiverDelta = afterReceiverBalance - beforeReceiverBalance;
 
     console.log('Sender delta:', senderDelta.toString());
     console.log('Receiver delta:', receiverDelta.toString());
 
-    // 接收方应增加与转账额相同
     expect(receiverDelta).toBe(valueWei);
 
-    // 发送方损失的余额应 >= 转账额（多出的部分是 Gas 费）
     expect(senderDelta).toBeGreaterThanOrEqual(valueWei);
   }, 60000);
 
diff --git a/networks/ethereum/src/signers/SignerFromBrowser.ts b/networks/ethereum/src/signers/SignerFromBrowser.ts
index abe43cb8..54876a5d 100644
--- a/networks/ethereum/src/signers/SignerFromBrowser.ts
+++ b/networks/ethereum/src/signers/SignerFromBrowser.ts
@@ -262,16 +262,13 @@ export class SignerFromBrowser {
     });
 
     const baseFeeArray = feeHistory?.baseFeePerGas;
-    // （可做个防护，确保确实是数组）
     if (!Array.isArray(baseFeeArray) || baseFeeArray.length === 0) {
       throw new Error(`Invalid feeHistory response: ${JSON.stringify(baseFeeArray)}`);
     }
 
-    // 2. 取数组最后一个元素（对应最新区块），然后转成 BigInt
     const baseFeeHex = baseFeeArray[baseFeeArray.length - 1];
     const baseFeePerGas = BigInt(baseFeeHex);
 
-    // 3. 返回 baseFee + tip
     return baseFeePerGas + maxPriorityFeePerGas;
   }
 }
\ No newline at end of file
diff --git a/networks/ethereum/src/signers/SignerFromPrivateKey.ts b/networks/ethereum/src/signers/SignerFromPrivateKey.ts
index 96910af5..0e94b8ae 100644
--- a/networks/ethereum/src/signers/SignerFromPrivateKey.ts
+++ b/networks/ethereum/src/signers/SignerFromPrivateKey.ts
@@ -478,18 +478,14 @@ export class SignerFromPrivateKey {
     };
     const resp = await axios.post(this.rpcUrl, payload);
 
-    // 1. 先拿到 baseFeePerGas 数组
     const baseFeeArray = resp.data.result.baseFeePerGas;
-    // （可做个防护，确保确实是数组）
     if (!Array.isArray(baseFeeArray) || baseFeeArray.length === 0) {
       throw new Error(`Invalid feeHistory response: ${JSON.stringify(baseFeeArray)}`);
     }
 
-    // 2. 取数组最后一个元素（对应最新区块），然后转成 BigInt
     const baseFeeHex = baseFeeArray[baseFeeArray.length - 1];
     const baseFeePerGas = BigInt(baseFeeHex);
 
-    // 3. 返回 baseFee + tip
     return baseFeePerGas + maxPriorityFeePerGas;
   }
 }
\ No newline at end of file