emit

The telescope can detect light emitted by distant galaxies.望远镜能观测到遥远星系发出的光。

chimneys emitting thick, black smoke冒出黑色浓烟的烟囱

The flowers of this plant emit [=give off] a powerful odor.这种植物的花散发出浓郁的气味。

The brakes emitted a loud squeal.刹车发出刺耳的嘎吱声。

The students emitted [=let out] a (collective) groan as the test results were announced.考试成绩公布时，学生们发出一片叹息声。