exchanging
[eks'tʃeɪndʒɪŋ]
v.
换回( exchange的现在分词 );
交换，替换;
进行易货贸易，作物物交换;
[金融业]（货币）交换，兑换;
例句:
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She heard Tom exchanging good-natured banter with Jane.
她听见汤姆和简互相打趣。
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Hugh and John were exchanging faintly barbed courtesies.
休和约翰正说着带有相互挤兑意味的客气话。
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He enjoyed exchanging banter with the customers.
他喜欢和顾客开玩笑。
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Where do I find detailed information about home exchanging?
来自WSJ
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Time is spent visiting friends and relatives and exchanging gifts.
来自BBC
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Exchanging is very cost-effective, but there are several variables.
来自WSJ