1.metric ton 公吨
The Wall Street Journal uses 220,000 metric tons of newsprint each year...
《华尔街日报》每年用去22万公吨新闻纸。
2.one-off 一次性的事物
It was just a one-off; it won't happen again.
这事绝无仅有；不会再发生了。
3.mistake for 看错成
Children may eat pills in mistake for sweets.
孩子们会把药片错当成糖果吃的。
4.pick up 拾起
He picked his cap up from the floor and stuck it back on his head.
他从地板上拾起帽子，重新戴在头上。
5.kick off 开始
Tom will kick off with a few comments.
汤姆讲话时要先发表几点意见。
