Pets
[ ['pets] ]
辅助 Assistant
abbr. 公共英语等级考试（Public English Tset System）
🗣️ 情景例句
What works?
什么有效！
A middle course is the safest.
中庸之道最保险。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，