学习资料

[意       思]vt. 散发，放射，发出
[例]  The chimney emitted thick smoke into the air. 烟囱向空中散发出浓烟。
vt. 发表(意见等),发出声音
[例]  John emitted a few curses. 约翰发出几声诅咒。

更多意思

vt.发出，射出，散发（光、热、声音、气等）

参考例句

1.	It is now unlawful for factories to emit black smoke into the air.
	工厂向大气中排放黑烟在现在是违法的。
2.	emit [give, let out, utter] moans.
	发出呻吟声。
3.	This is a major achievement because, in relative terms, planets are very small and old not emit light.
	这是一个重要的成就，因为相对来说，行星很小，而且也不发光。
4.	It has been found that certain bats emit squeaks and by receiving the echoes, they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
	人们发现，某些蝙蝠能发出尖叫声，并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。
5.	emit , give off a pungent odour
	发出辛辣的气味