动词短语
中文翻译：兑换
同义词：
['exchange', 'convert', 'swap']
例句：
-
1. We can exchange our old books for new ones at the library.
我们可以在图书馆用旧书换新书。
-
2. The currency exchange rate is changing rapidly.
货币汇率正在迅速变动。
-
3. She exchanged her old phone for a new one.
她用旧手机换了一个新手机。