Thurday，2026.04.16
New words：
drain [dreɪn]
v. 排干；流走；排空（液体）
v. 耗尽（精力、体力、金钱）
n. 下水道；排水管；排水口
n. 消耗；负担
详细词源拆解：
源自古法语 drainer，拉丁语 dregare
本义：使水流干、排干
引申义：耗尽精力、金钱、资源
必记高频搭配
drain 下水道
We should clean the drain regularly to stop it from blocking.
drain water /rainwater 排水；排雨水
The pipes drain rainwater away from the roof.
drain the pool /lake 排空水池 / 湖水
Workers plan to drain the swimming pool for cleaning.
drain one’s energy /strength 耗尽精力 / 体力
The long run drained all his strength.
a drain on sth 对…… 的消耗 / 负担
Too much homework is a drain on students’ time.
关键使用提醒
- 固定搭配：drain away 流走；渐渐消失
- be drained (of sth) 被耗尽……
He felt drained after the exam.
考试后他感觉精疲力竭。
- 初中阅读常考：drain → 排水 / 下水道