n. an additional edition of a newspaper (usually to report a crisis)
n. something additional of the same kind
s. added to a regular schedule
s. further or added
n. 额外的事物, 另外的收费
a. 额外的, 特别的
adv. 额外地, 特别地, 非常地
1. I need some extra time to finish my homework.
我需要一些额外的时间来完成作业。
2. She brought an extra sweater in case it gets cold.
她带了一件额外的毛衣以防天气变冷。
3. The restaurant charged extra for dessert.
餐厅对甜点收取额外费用。