SITPn.系统综合检验计划sitv.坐；栖息；使就座n.坐；栖息sit next to Nellie见习；跟着老手学习sit cross-leggedv.盘脚坐sitophore sclerite食道骨situs of ownership所有权sit tailor fashion盘腿坐sitting magistrate[法] 审判官sitosterolglucoside谷甾醇葡糖甙sit about/around懒洋洋地闲坐； 坐着不吭声sit down for a chat坐下来谈谈sitting up position端坐位