【重点词汇】

1.Smell, or olfaction, as scientists call it, is an important sense for many fish.
闻，或则科学家们所说的嗅觉，是鱼类的一种重要感官。

olfaction n. 嗅觉

2.Some fish can pick up chemical signals when immobile by pumping water through their olfactory system via tiny hairs called cilia.
当鱼类停止游动的时候，它们可以通过用自己的纤毛排水，来感觉身边的化学信号。

immobile adj. 不动的，不变的，静止的

如：The deer stood immobile among the trees.
那只鹿一动不动地站在树丛里。

Her illness has made her completely immobile.
她病得完全失去了活动能力。

3.For instance, a large group of fishes release a chemical when they’re wounded that incites other fish to flee.
例如，如果一群鱼受到攻击，它们就会释放出一种化学物质，好让其它的鱼赶紧逃命。

incite v. 煽动，刺激，激励

如：Just a few words will incite him into action.
他只需几句话一将，就会干。

The captain was accused of inciting other officers to mutiny.
该上尉被控煽动军官叛变。