When my printer's type began to grow faint, I called a local repair shop, where a friendly man informed me that the printer probably needed only to be cleaned.

我的打印机打出来的字开始模糊不清了，于是，我给当地的一家修理店打了一个电话，那里的一位友善的男士告诉我：打印机很可能只要清洗一下就好了。

youdao

We have come too far to grow faint-hearted.

WHITEHOUSE: Remarks by the President at a Campaign Event, Boulder, CO

That was another challenge for the astronomers: Because they didn't know the asteroid's rotation period, they didn't know when it would wax and wane, and when it would grow too faint to see.

CNN: Phew! Asteroid to miss Earth in 2040, NASA says