We produce tears in response to insults to the eyes — the sting of onion fumes, a tiny insect that flew into your cornea.

当眼中进入异物时我们就会流泪——洋葱的气味会薰痛双眼，小昆虫飞进眼角膜也会刺激泪腺。

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We produce tears in response to insults to the eyes—the sting of onion fumes, a tiny insect that flew into your cornea.

当眼里受到攻击时，我们以泪水应对，比如洋葱气味的侵袭，小虫飞进了眼睛。

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With each blink of the eyelids, tears are spread across the front surface of the eye, known as the cornea.

每当我们眨眼睛的时候，泪液就会快速覆盖眼球前表面的角膜。

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