单词	sit up (or sit someone up)
释义	请查阅词条：sit
随便看	diphenhydramine diphenhydramines diphenylamine diphone diphones diphosphopyridine nucleotide diphtheria diphtherial diphtherial diphtheric diphtheritic diphtheritic diphtheritically diphtheroid diphthong diphthongal diphthongal diphthongation diphthongic diphthongisation diphthongise diphthongization diphthongization diphthongize diphthongs 什么是远视？什么是透视法？什么是通信卫星? 什么是通用串行总线接口（USB）？什么是通用机枪? 什么是道教？什么是遗迹化石？什么是酸雨？什么是野葛？什么是金字形神塔？ Radioskop Radiosonde Radiotelegramm Radiotelegraphie Radioteleskop Radiovision Radiowelle Radium Radium Radiumbehälter