Concentrate on doing sth
专心于───concentrate on
Tired, sleepy, boring and weakness and fatigue and rest to concentrate on it!───累了, 困了, 没劲了,乏力了,疲劳了,专心地休息吧!
He wants his ministers to concentrate on implementing policy, not on drawing it up.───他希望部长们把注意力放在政策的执行上，而不是政策的制定上。
I wish you'd concentrate on what I'm saying.───但愿你能集中注意力听我讲.
I am leaving to concentrate on writing fiction.───我要离开去专心写小说。
We need to concentrate on our core business.───我们需要集中在核心业务上。
It's time for us all to get back to basics and concentrate on what really matters.───现在是我们回到实质性问题,把注意力放到真正要紧的事情上的时候了.
Concentrate on selling them well.───集中出售.
It was up to him to concentrate on his studies and make something of himself.───是否能专心学习并取得一定成就要靠他自己。
We need to concentrate on our target audience, namely women aged between 20 and 30.───我们须针对我们的听众对象，即年龄在20到30岁之间的妇女。
They should concentrate on rejuvenating the existing vegetation, like grass and shrubs.───他们应该侧重于修整现有的绿化植被，比如草和灌木。
It was up to him to concentrate on his studies and make something of himself.