fall off...和fall down的不同(含义、语法、使用范围.)

问题描述:

fall off...和fall down的不同(含义、语法、使用范围.)

fall off decrease in quantity or quality 数量或质量下降:Attendance at my lectures has fallen off considerably.听我讲课的人已大大减少了.* It used to be my favourite restaurant but the standard of cooki...