trade in
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trade in — 動詞
1. to give something old as part of the payment for something new
1.動詞
釋義
折價換購
to give something old as part of the payment for something new
例句
I traded in my old car for a new one.
trade in — 名詞
1. the activity of buying and selling goods or services
1.名詞
釋義
貿易
the activity of buying and selling goods or services
例句
International trade has increased this year.