反过来也是这样；你不是真的用心在做一件事情时，你是很容易灰心丧气的。

The opposite is also true: When you don't have a heart for what you're doing, you're easily discouraged.

youdao

如果我们只会用脑不会用心的话，生活中你可能避免了很多伤痛，提高了效率，但是自己会过得很僵化、很枯燥。

you may aviuded lots of pain in life if your live with your mind rather your heart, you may have improved the efficiency, but you life would be stereotype and boring.

youdao

哇！你的确对这门课很用心。

You're really involved in this class.

youdao