I. Dùng "bumper" là noun
Mang nghĩa"cái hãm xung, cái đỡ va (ô tô...)"
=Bumpers are bars at the front and back of a vehicle which protect it if it bumps into something.
II. Dùng "bumper" là adj
1. Mang nghĩa"trù phú, vụ mùa bội thu"
=A bumper crop or harvest is one that is larger than usual.
2. Mang nghĩa"kích thước lớn"
=If you say that something is bumper size, you mean that it is very large.
- ...bumper profits.
- ...a bumper pack of matches.