second wind 恢复的精力;重振的精神;缓过劲来的状况

【例句】
Finding a second wind, he rode away from his pursuers.
他缓过劲儿来，骑马逃离了追赶他的人。

Once you've got your second wind it'll be easier.
等你缓过劲儿事情就会容易些。