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n (1)火花(星)(small bit of glowing particle thrown off from sth burning or by striking together of two hard objects)[C]：a shower of～s 一陣火花;produce～s by rubbing stones together 擊石而產(chǎn)生火花;S～s flew from the fire. 火上飛出火星。Burning wood throws off～s. 燃燒的木材迸出火星。the～that set off the war (fig) 引發(fā)戰(zhàn)爭的火星;

(2)電火花(flash of light produced by electricity passing across a gap)[C]：an electric～電火花;The faulty switch is sending out～s. 這個短路的開關(guān)發(fā)出火花。S～s flew from a short circuit in the toaster. 電火花從烤面包箱中的短路處迸發(fā)出來?！纪絝lash，sparkle，beam;

(3)一點兒，微量(very small amount;trace)[U，a～][N (of)]：without a～of cleverness/enthusiasm 沒有絲毫的聰慧/熱情;haven't a～of interest in the plan 對此計劃沒有一點兒興趣;〖同〗bit，trace，atom;

vi (1)發(fā)出(產(chǎn)生)火花(give out or produce sparks)[I]：Fireflies were～ing in the gathering darkness. 螢火蟲在濃濃夜色中發(fā)出點點亮光。The bonfire is～ing. 篝火在迸射火星。What made the electric wire～? 什么使那電線發(fā)出電火花?〖同〗flash，sparkle;

(2)激勵(發(fā))，鼓舞(encourage;rouse to action)[T+n+prep (to/into)]：～one's team to victory 鼓舞自己的隊去奪取勝利;～strong criticism from the press 激起新聞界的強烈批評;～sb's interest in politics 激起某人對政治的興趣;〖同〗stimulate，arouse，excite，provoke;

spark off (v adv) 1)使爆炸，引爆(vt)：The explosives were～d off by someone striking the iron heel of his boot on the stone floor. 某人靴子的鐵后跟與石地面摩擦產(chǎn)生的火花引爆了炸藥。2)為……的直接原因;導(dǎo)致(vt)：His rude words～d off a fight. 他粗魯?shù)难赞o引發(fā)了爭斗。

→′sparking-plug，′spark-plug n 火花塞;′sparkle v & n