1. 沖動(dòng);一時(shí)興起的念頭 An impulse is a sudden desire to do something.
e.g. Unable to resist the impulse, he glanced at the sea again... 他抑制不住沖動(dòng),又向海面瞥了一眼。 e.g. He still couldn't understand the impulse that had made him confide in Cassandra... 他仍然難以理解是什么樣的沖動(dòng)使他向卡桑德拉吐露了秘密。
2. 脈沖 An impulse is a short electrical signal that is sent along a wire or nerve or through the air, usually as one of a series.
3. 一時(shí)興起的;隨興的 An impulse buy or impulse purchase is something that you decide to buy when you see it, although you had not planned to buy it.
e.g. The curtains were an impulse buy. 窗簾是一時(shí)興起買(mǎi)下的。
4. 憑沖動(dòng);一時(shí)興起 If you do something on impulse, you suddenly decide to do it, without planning it.
e.g. Sean's a fast thinker, and he acts on impulse... 肖恩是個(gè)思維敏捷、行事隨興的人。 e.g. After lunch she decided on impulse to take a bath. 午飯后她突然興起,決定洗個(gè)澡。
impulse英英釋義
noun
1. the act of applying force suddenly
e.g. the impulse knocked him over
Synonym: impulsionimpetus
2. an impelling force or strength
e.g. the car's momentum carried it off the road
Synonym: momentum
3. the electrical discharge that travels along a nerve fiber
e.g. they demonstrated the transmission of impulses from the cortex to the hypothalamus