Serves
v. （为…）服务( serve的第三人称单数 ); 任（职）; 提供; 端上
🗣️ 情景例句
having to take care of the baby all weekend.
整个周末照顾孩子。
This offer must be withdrawn if we haven't received your reply within five days.
如果5天之内我方未必到贵方答复，该盘撤消。
What kind of problem.
什么样的问题呢？