✅ 同义词
🗣️ 情景例句
Collecting matchsticks was fun, until that fateful day one of them caught alight.
收集火柴是一种乐趣，除非一天其中一根火柴不幸燃烧起来。
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
Then he put his hand into pocket, and took out a phrasebook.
然后他把手伸进了衣袋，掏出了一本常用语手册。