词汇	cross-sectional research
释义	cross-sectional research 横断研究
随便看	a very singular personage A very small blastomere a very small degree of A very small object A very small object,creature,or particle A very small object, creature, or particle A very small part A very small pipette used in microinjection A very small quantity, especially of food a very small town A very small tube or tubular structure Avery sodium oleate agar Avery sodium oleate culture-medium a very solid plan a very spacious kitchen a very special love song Avery's septotome Avery's sodium oleate agar Avery's sodium oleate culture medium Avery's sodium oleate culture-medium a very strange enchanted boy A very strong gust of wind or air a very strong laxative Averyt a very talkative child