如果你现在离开课程,你所有的辛勤努力都将付诸东流。
If you leave the course now, all your hard work will go ___down ___the ___drain.
我想,所有这些晚间谈话和10万日元的投资都打了水漂。
All those evening conversations and the investment of 100,000 yen went ___down ___the ___drain, I thought.
由于管理不善,公司的利润都白费了。
The company's profits went ___down ___the ___drain due to poor management.