Lockgate
n. (运河等的)闸门
🗣️ 情景例句
I'm out of a job at the moment.
现在我失业了。
The first element of success is the determination to succeed.
成功的首要因素是要有成功的决心。
Because they destroy so many insects, and insects include some of the greatest enemies of the human race.
因为它们能消灭那么多的昆虫，其中包括一些人类的大敌，