Principals
n. 负责人( principal的复数形式 ); [法律]本人; 主要的人（或物）
🗣️ 情景例句
The gap between the poor and the rich seems to be growing every day.
贫富悬殊好像与日俱增。
Business may be troublesome, but idleness is pernicious.
事业虽扰烦，懒惰更害人。
The noise pollution survey revealed a rather spurring and possibly amusing old fashioned source of noise.
这个有关噪音的污染调查还揭示了一种出人意外而同时可能会引人意外而同时可能会引人发笑的老式噪音源。