Question

impulse n.凭冲动行事;突如其来的念头;[电子]脉冲;[医]冲动，搏动;adj.冲动的;v.推动; pl:impulses~

Accepted Answer

英[ˈɪmpʌls]  美[ˈɪmˌpʌls] N-VAR冲动;一时兴起的念头An impulse is a sudden desire to do something.例：Unable to resist the impulse, he glanced at the sea again...他抑制不住冲动,又向海面瞥了一眼。例：He still couldn't understand the impulse that had made him confide in Cassandra...他仍然难以理解是什么样的冲动使他向卡桑德拉吐露了秘密。N-COUNT脉冲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.ADJ一时兴起的;随兴的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.例：The curtains were an impulse buy.窗帘是一时兴起买下的。PHRASE凭冲动;一时兴起If you do something on impulse, you suddenly decide to do it, without planning it.例：Sean's a fast thinker, and he acts on impulse...肖恩是个思维敏捷、行事随兴的人。例：After lunch she decided on impulse to take a bath.午饭后她突然兴起,决定洗个澡。

单词	impulse
音标	英[ˈɪmpʌls] 美[ˈɪmˌpʌls]
解释	n.凭冲动行事;突如其来的念头;[电子]脉冲;[医]冲动，搏动;adj.冲动的;v.推动;
例句	N-VAR 冲动;一时兴起的念头 An impulse is a sudden desire to do something. 例：Unable to resist the impulse, he glanced at the sea again...他抑制不住冲动,又向海面瞥了一眼。例：He still couldn't understand the impulse that had made him confide in Cassandra...他仍然难以理解是什么样的冲动使他向卡桑德拉吐露了秘密。 N-COUNT 脉冲 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. ADJ 一时兴起的;随兴的 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. 例：The curtains were an impulse buy.窗帘是一时兴起买下的。 PHRASE 凭冲动;一时兴起 If you do something on impulse, you suddenly decide to do it, without planning it. 例：Sean's a fast thinker, and he acts on impulse...肖恩是个思维敏捷、行事随兴的人。例：After lunch she decided on impulse to take a bath.午饭后她突然兴起,决定洗个澡。
变形	pl:impulses~

Impulse Buy Decide 英[ˈɪmpʌls 美[ˈɪmˌpʌls N.凭冲动行事;突如其来的念头;[电子]脉冲;[医]冲动，搏动;Adj.冲动的;V.推动 N Var 冲动;一时兴起的念头