expiration

US /ˌek.spəˈreɪ.ʃən/
UK /ˌek.spəˈreɪ.ʃən/
"expiration" picture
1.

到期, 期满

the end of the period for which something is valid

:
Please check the expiration date on the milk.
请检查牛奶的保质期
The passport's expiration is next month.
护照的有效期是下个月。
2.

呼气, 吐气

the act of breathing out; exhalation

:
The doctor listened to his expiration.
医生听了他的呼气
Deep expiration helps to relax the body.
呼气有助于放松身体。