Complementarity
n. 互补性, 互为补充\\n[经] 互补性
🗣️ 情景例句
Where's the 'Lost and Found' counter?
失物招领处在哪儿？
Mad dog bites his master.
疯狗咬主人。
He uses a lift to go up and down.
他乘电梯上上下下。