📌 对比
肯定:Open the window. 打开窗户。
否定:Don't open the window. 不要打开窗户。
🔊 更多对比
Read the book. ↔ Don't read the book.
Make the bed. ↔ Don't make the bed.
Clean the room. ↔ Don't clean the room.
🎯 日常规则
Don't run in the hallway. 不要在走廊里跑。
Don't talk in class. 上课不要说话。