Else
　　(1)else 此外，别的
　　Where else did you go?

　　(2)else 否则，不然
　　Hurry,else you'll be late.

　　Involve
　　(1)involve 包括
　　Housekeeping involves cooking, washing dishes, sweeping and cleaning.

　　(2)involve 使陷于
　　One foolish mistake can involve you in a good deal of trouble.

　　(3)involve 使纠缠，使难得
　　A sentence that is involved is hard to understand.

　　(4)involve 包围
　　Clouds involved the hilltop.