1.sit idle 无所事事
Old as he is, he would rather work than sit idle.
他虽已年迈,但他宁愿工作也不愿闲着
2.cutting-edge 先进的,尖端的
What we are planning is cutting-edge technology never seen in Australia before.
我们正在筹划的是澳大利亚前所未见的尖端技术
3.at full capacity 全力以赴
The factory is working at full capacity.
这家工厂在开足马力生产
4.churn out 大量生产
He began to churn out literary compositions in English.
他开始用英文很快地创作出大量的文学作品
。