antenna [æn'tenə] n.
例句:
1.有些特征可以去区分它们:昆虫都有触角,而蜘蛛没有。
Here are some characteristics to distinguish them: Spiders don't have antenna like insects;Spiders don't have wings at all.
2.避日蛛身上的须肢是它们的感官,类似昆虫的触角,使它们看起来多了两条腿。
They also have long pedipalps, which function as sense organs similar to insects' antennae and give the appearance of the two extra legs.
antenna
Insect_Feeler