Perifocus
近焦点; 近主焦点
🗣️ 情景例句
The smog in L.A. is caused by air pollution and water vapor.
洛杉矶的烟雾是由空气污染和水蒸气造成的。
The great and the little have need one of another.
伟大与渺小相得益彰。
Did you get our packing specifications?
你收到我们的装箱说明书了吗？