清醒地估计局势
estimate the situation with a clear head
头脑清醒
be clear-headed
早晨头脑清醒
one is clear-headed in the morning
保持清醒头脑
keep a clear head
政治上保持清醒的头脑
keep a clear head in relation to politics
使保持清醒的头脑
make someone keep a clear head
把头脑放清醒一点!
be sensible!
血的教训，使得我们的许多同志头脑清醒了。
Tough lessons have made our many comrades clear-headed and able.
我们清醒地看到：在前进的道路上还会有种种困难和曲折。
We can clearly see that the path of progress will be fraught with difficulties.
你清醒些吧，不能这么办。
Be sensible, you can't do it like this.