Efficiencies
n. 效率, 效能( efficiency的复数形式 )
🗣️ 情景例句
Never pump gas with the engine running.
发动机在运转时，别加油。
Doctors and lawyers are professional people.
医生和律师是专业人员。
On, hello, Bruce! How are you?
噢，喂，布鲁斯！你好吗？