X-ray,X射线，X光,四级词汇

AKON

史密斯飞船

tatoo

How to Prepare for a First Date

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音标学习专题

金融英语专题

zone,地区，区域，范围,四级词汇

youth,青春；青年们；青年,四级词汇

yield,&出产产量,四级词汇

yearly,每年的一年一度,四级词汇

yawn,打呵欠呵欠,四级词汇

yard,码,四级词汇

yard,院子，庭院；场地,四级词汇

X-ray,X射线，X光,四级词汇

wrist,腕，腕关节,四级词汇

wreck,失事；残骸破坏,四级词汇

wrap,裹，包，捆披肩,四级词汇

wound,创伤，伤使受伤,四级词汇

worthy,有价值的；值得的,四级词汇

worthwhile,值得花时间的,四级词汇

worthless,无价值的，无用的,四级词汇