adj.精疲力竭，无精打采
v.排空，(使)流光，放干，(使)流走，流出，喝光，喝干
drain的过去分词和过去式

原形：drain第三人称单数：drains复数：drains过去式：drained过去分词：drained现在分词：draining

All our efforts went down the drain.
我们的努力全白费了。
Leaves choke the drain.
树叶把下水道塞住了。
Don't drink it all! Leave me a drain.
不要把它喝光！给我留一口。
Leave the dishes to drain.
把碟子控干。
Leaves stopped up the drain.
落叶把排水沟都填满了。
The water drained slowly from the bathtub after I turned off the faucet.
我关掉水龙头后，浴缸里的水慢慢排空。
After a heavy rainstorm, the streets were drained of积水. (大雨过后，街道上的积水被排干了。
The plumber came to fix the drain that was clogged with hair and debris.
水管工来修理被头发和杂物堵塞的下水道。
Drain the oil from the car engine before changing it.
更换汽车引擎机油前，先将其排出。
The kitchen sink is draining well; there's no need to worry.
厨房水槽排水良好，不用担心。
The plumber suggested installing a backwater valve to prevent sewage from draining into the home.
水管工建议安装一个防反流阀以防止污水倒灌进房屋。
The teacher asked the students to drain the contents of their water bottles before leaving the classroom.
老师要求学生们在离开教室前将水瓶里的水倒掉。
The old house had a faulty drain system that required constant repairs.
那栋老房子的排水系统有问题，需要经常维修。
The garden hose was drained completely, revealing the dry soil underneath.
花园软管完全排空，露出了下面干燥的土壤。
The city workers are working on draining the flooded area to restore normalcy.
城市工人正在努力排干被水淹没的区域，以恢复常态。