逆

逆

"逆" means "to oppose, go against, reverse, or defy."

Here '逆' means 'against' or 'contrary to', describing the action of going contrary to the flow.

他敢于逆流而上，是个非常有勇气的人。

He dares to go against the current, and he is a very courageous person.

In this sentence, '逆' is used to mean 'to oppose' or 'against', describing moving against the wind.

逆风而行需要更多的努力和决心。

Walking against the wind requires more effort and determination.

Here, '逆境' means 'adversity', where '逆' contributes to the meaning of challenges or opposition.

那是个充满逆境的时刻，但他没有放弃。

That was a moment full of adversities, but he did not give up.