Palnut
一种单线螺纹锁紧螺母
🗣️ 情景例句
He was in trouble with the Customs.
他在海关那里有了麻烦。
Light troubles speak; great troubles are silent.
小困难，大声叫嚷；大困难，闷生不响。
New jobs are needed because a number of people are out of work.
因为许多人没有工作，所以需要为他们提供就业机会。