share weal and woe 患难与共；同甘共苦；有福同享；有难同当

【例句】
I am so lucky to have you in my life to share weal and woe with me.
我很幸运，生命中有你们和我同甘共苦。

Acquaintances are people whom you may see often. But, you could never share weal and woe with an acquaintance.
熟人可能是与你经常见面的人，但是你永远不能与他分享苦与乐。