三大介词on,in,at的用法精讲与辨析 ■ on： wall; floor; ceiling(天花板)■ in ： room; box; city■ at ： door; window; bus stop ■ on the left; on the right■ in the west; east; south; north■ at the top; at the bottom; at the beginning/end of ■ There are a lot of people ___ t...

时间:2025-02-02 02:00栏目:行业资料