I didn't stand firmly and I tumbled.

我没有站稳，摔倒了。

youdao

The pines, cypresses on the mountain still stand firmly.

松树，柏树依然坚定地站在山上。

youdao

If two people stand firmly face-to-face, maybe they'll fight.

如果两人面对面且两脚牢牢地站着，就很可能会发生打斗。

youdao

It is time for the Syrian people to determine their own destiny, and we will continue to stand firmly on their side.

BBC: Full text: Barack Obama statement on Assad

Second, a pro-jobs move for Romney or Obama would be to stand firmly against blind, across-the-board cuts in Medicare and other public insurance programs.

FORBES: Obama and Romney Need to Get Real On Jobs Policy

Everyone in this country should stand firmly behind that.

CNN: Why 'All lives matter' misses the point