injection

/ˌɪnˈʤɛkʃən/

the forceful insertion of a substance under pressure

Chinese meaning: 注射；注入

The patient received a flu injection at the clinic yesterday.

病人昨天在诊所打了流感疫苗。

Fuel injection systems improve engine efficiency and reduce emissions.

燃油喷射系统提高了发动机效率并减少了排放。