D. b.

Come on, you can do that.

振作起来，你一定行。

A disease known is half cured.

病情确诊断，治病好一半。

What about heart? Heart is what makes you love other people. You can love your friend, even though you don't agree with everything she or he says. So when you listen to someone, you should listen with complete attention, and with complete respect for

那么“心”字的意思是什么呢？“心”是指对别人的爱心。你能爱你的朋友，即使你并不同意他们所说的每一件事情。因此，当你听某人说话时，你要一心一意地听，对别人完全尊重。