Exchanging
v. 交換；兌換；交流（exchange的ing形式）
? 同義詞
??? 情景例句
There's a park over there. Let's walk in the park for a while.
那邊有個(gè)公園。我們?nèi)ド⑸⒉桨桑?/div>
This windows is junst as small as that one.
這扇窗戶剛好和那扇一樣小。
Er, this is Lucy, and er, this is Lily.
這個(gè)是露茜，這個(gè)是莉莉。