adj. 额外的,补充的,附加的;特大的,特别的;
n. 附加物,额外的事物;临时演员;号外;上等产品,上品;
adv. 额外地;格外地,特别地;
extra=out出去 → 出去的 → 余出的 → 额外的
🗣️ 情景例句
There is not a shadow of a doubt that they did it.
毫无疑问,是他们干的。
Will you please repeat it?
请你重说一遍好吗?
Men, particularly, spend hours of their leisure time installing their own fireplaces, laying out their own gardens; building garages and making furniture.