Ditan
二苯基甲烷
🗣️ 情景例句
Excuse me. My name is Richard Stewart.
对不起 我叫Richard Stewart。
Without a friend the world is a wilderness.
没有朋友，世界就等于一片荒野。
The next evening the man upstairs came home from work late as usual.
第二天晚上，楼上人和平时一样很晚才下班回家。