adj.闲置的, 空闲的;备用的;瘦(高)的;
v.留出,剩余;省得;饶恕,使幸免;不吝惜(时间、金钱);
n.备用品;
例句:
Do you carry a spare wheel in the back of your car?
你在车后带了一个备用的轮胎 吗 ?
These pieces of bread are spare, I don't need them.
这些面包是多余的, 我不需要.
Eric got no votes at all, but we didn't tell him because we wanted to spare his feelings.
埃里克一票也没得到, 可是我们没有告诉他,因为我们不想让他难过.