take great pains

• 煞费苦心； 花大气力

take great pains的用法和样例：

例句

1. He was taking great pains to solve the problem.
   他正煞费苦心解决这个问题。
2. She took great pains in educating her children.
   她煞费苦心教育她的子女。
3. The pianist pounded out the tune with great effort.
   钢琴师用了很大气力才弹奏出这个调子。
4. They took great pains to build up their influence there.
   他们花很大气力在那里培植他们的势力。