gasp is 喘气
in English it is defined as:
–noun
1. a sudden, short intake of breath, as in shock or surprise.
2. a convulsive effort to breathe.
3. a short, convulsive utterance: the words came out in gasps.
–verb (used without object)
4. to catch one's breath.
5. to struggle for breath with the mouth open; breathe convulsively.
6. to long with breathless eagerness; desire; crave (usually fol. by for or after ).