Energy efficiency
能量系数，能量效率，能源效应
🧩 词语组成解析
🗣️ 情景例句
Good for you.
我真为你高兴。
In university, students are trained to become doctors and nurses.
大学的学生被训练成为医生和护士。
He noticed at once that discipline was slack: the Danes had the self-confidence of conquerors, and their security precautions were casual.
他马上发现丹麦军纪律松弛，他们以征服者自居，安全措施马马虎虎。