Porometer
气孔计
🗣️ 情景例句
You should perform what you promised to do.
你应该履行诺言。
If you run after two hares,you will catch neither.
同时追两兔，一只也难捕。
and you avoid the frustration of arriving at the very moment when the train is drawing out of the station and being unable to get on it.
而且可以避免那种正好在火车驶出站时赶到车站，因上不去车而感到的沮丧。