Bicomplementary
互余集
🗣️ 情景例句
Have you been to our Tourist Information Center?
你去过我们的旅客服务中心吗？
A life without a friend is a life without a sun.
人生在世无朋友，犹如生活无太阳。
A cat? What's its name?
一只猫？它叫什么名字？