can't help but do 和couldn't help but do 只是时态的区别吗?站在这美丽的森林中,他情不自禁地深呼吸.为啥翻译成Standing in the beautiful forest,he couldn't help but have a deep breath.为啥用couldn't 不是 can't,因

can't help but do 和couldn't help but do 只是时态的区别吗?站在这美丽的森林中,他情不自禁地深呼吸.为啥翻译成Standing in the beautiful forest,he couldn't help but have a deep breath.为啥用couldn't 不是 can't,因
can't help but do 和couldn't help but do 只是时态的区别吗?
站在这美丽的森林中,他情不自禁地深呼吸.为啥翻译成Standing in the beautiful forest,he couldn't help but have a deep breath.为啥用couldn't 不是 can't,因为这个句子是过去时吗?

can't help but do 和couldn't help but do 只是时态的区别吗?站在这美丽的森林中,他情不自禁地深呼吸.为啥翻译成Standing in the beautiful forest,he couldn't help but have a deep breath.为啥用couldn't 不是 can't,因
could 作情态动词使用时带有的感情色彩比can要强,而且这还要结合上下语境,如果这是已经发生了的事,或者作者设置的语境是一个发生了的事,应该用could.

是的，是因为这里是过去时态，另外使用could的话，语气更加委婉，更符合这里的意境