这是一个简单窥孔优化形式。

This is the simplest form of a peephole optimization.

youdao

我走到门后，推上门锁，插紧门栓，又眯着眼睛从窥孔向外看。

I walked to the door, pushed in the lock, threw the deadbolt closed and peeked out the peephole.

youdao

我走到门后，推上门锁，插紧门栓，又眯着眼睛从窥孔向外看。

I walked to the door, pushed in the lock, threw the deadbolt closed and peeked out the peephole.

youdao