KIEV/MOSCOW, June 9 (Xinhua) -- Ukraine and Russia on Monday carried out the first stage of a prisoner exchange following agreements reached in Istanbul last week, Ukraine's Coordinating ...

内容简介 听众 Iris 想知道动词短语 “fill in” 和 “fill out” 之间的差别在哪里。这两个短语都有 “填写” 的意思，但它们的用法并不完全相同 ...

These three words share similar meanings, but also have differences in usage. Which one do you think is the most commonly used?