そして、どうすることも出来ない物憂さに、ふっとため息をつく。の英語

And then I breathe a sigh from melancholy in being unable to do anything about it.

You cannot breathe.

When you breathe out in cold weather, you can see your breath.

sigh regretfully

struggle for breath

the act of breathing weakly just before death

to breathe one's last―expire

to be able to strain oneself while holding one's breath

of breathing, in a gasping manner

She could scarcely gasp the words.

to be able to blow something down

I'll do away with him.

I'll kill him.

I'll choke the life out of him.

run out of steam

to be able to hold one's breath and strain the stomach muscles

the moment of one's last breath

I am completely out of breath.

I'm completely out of breath.

Isn't it hard to breath?

“Help! help!” he cried, gasping for breath.

the condition of looking suffocatingly trying

It was also hard for me to say my lines in time.

to be able to breathe out

You have to pace yourself or you'll choke halfway through.

heave or utter a sigh

It shall not be done while I have a drop left in my veins.

He doesn't seem to be breathing...

to die of suffocation

keep from exhaling or expelling