He said it was wrong to single out any section of society for AIDS testing.

他说挑出社会中任何一部份人来做艾滋病检查都是错误的。

the Georgetown section of Washington, D.C.

华盛顿特区的乔治敦区。

a large orchestra, with a vast percussion section.

一支拥有大型打击乐器组的大型管弦乐队。

For some buildings a vertical section is more informative than a plan.

对一些建筑物来说，垂直剖面图比平面图提供的信息更多。

It holds vegetables in place while they are being peeled or sectioned.

将蔬菜去皮或者切片时，可以拿它来固定。