乐于干某事
Be pleased to do something
为…做准备
Be prepared to do something
分析：
pleased
英 [pliːzd]美 [plizd]
adj. 高兴的；喜欢的；乐意做某事的
prepared
美 [prɪ'pɛrd]
adj. 准备好的；精制的
to do something
作状语。
例句：
We shall be pleased to talk the matter over with you.
我们很高兴和你们详细讨论这件事情。
If you want to be a good ruler, you have to be prepared to do these things.
如果一个人想要成为一个好的统治者，那他得做好准备这样做。
