Don't be blue. 不要太忧郁.
Chin up! 不要垂头丧气! Don't be so pessimistic. 不要太悲观.
It's not so bad. 情况没你想的那么糟. Things could be a lot worse! 还有比这更恶劣的呢! Brace yourself! 打起精神来!
We'll find a way. 我们会找到解方.
We'll ride this storm out. 我们会安度这场风暴.
