Sbd
肖特基勢壘二極管
??? 情景例句
Don't you have to work?
你明天不用上班嗎？
When did you join the oranizetion?
你什么時(shí)候加入這個(gè)團(tuán)體的？
There is no need to say anything to the other worker.
你沒有必要跟那個(gè)工友說什么。