track down什么意思解释？

He was determined to track down the cause of food spoilage.他决心查出食品腐烂的原因.Car manufacturers stamp a vehicle identification number at several places on new cars to help track down stolen vehicles.汽车制造商在新车的好几处地方打上车辆识别号码，以便于追...

track down的音标：track down的英式发音音标为：[træk daun]track down的美式发音音标为：[træk daʊn]...

v.减少感光性，使不敏感( desensitize的现在分词 )...

audience的音标：audience的英式发音音标为：['ɔ:diəns]audience的美式发音音标为：['ɔdiəns]...

n.政治家( politician的名词复数 )，政客，玩弄权术者...

exurban的音标：exurban的英式发音音标为：[ek'sɜ:bən]exurban的美式发音音标为：[ek'sɜbən]...

knowing的反义词有：ignorant。adj.knowing的反义词（知道的;博学的）：ignorant。...

n.连接，接合，会合点，接合点，（公路或铁路的）交叉路口，（电缆等的）主结点...

fins的音标：...

The group was herded into a bus.这群人被赶上了一辆公共汽车。He herded up his goats.他把山羊赶拢在一起.They herded into the corner.他们往角落里聚集....

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“租契”的英语可以翻译为：[法] lease contract ...

v.预示，预告，预言( bode的第三人称单数 )，等待，停留( bide的过去分词 )，居住，（过去式用bided）等待...

figurine的复数形式为：figurines...

He began by pitying his Big Brother and ended by sympathizing with him.他开始怜悯觉新,过后又同情觉新.The performer received only pitying looks from his audience.从观众的表情看,那表演者得到的只是同情和怜悯.At the risk of sounding self-pitying, I'd say...

ichthyosis的音标：ichthyosis的英式发音音标为：[ˌɪkθɪ'əʊsɪs]ichthyosis的美式发音音标为：[ˌɪkθɪ'oʊsɪs]...

arapahite的音标：arapahite的英式发音音标为：[ərə'pɑ:haɪt]arapahite的美式发音音标为：[ərə'pɑhaɪt]...