✅ 同义词
🗣️ 情景例句
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
Courtesy costs nothing.
谦虚恭敬，不用分文。
He speaks little Chinese, so it's difficult to communicate with him.
他只能讲一点汉语，所以和他交流很难。