她是个精明的女商人。She's a shrewd businesswoman.女商人在洛杉矶能挣很高的工资.Businesswomen can earn high salaries in Los.德布拉是个年青而又非常有胆识的黑人女商人，其涉猎广泛。Debra is a very enterprising young black business-woman who is involved in a lot of activi...
Can tourniquets be used in patients with sickle cell disease?止血带能否用于镰状细胞病患者?She bought herself a hoe and a sickle.她给自己买了一把锄头和一把镰刀.Take the sickle which is lying on the grindstone.把磨刀石上的那把镰刀拿去.Stubble side was brushy, tha...
Clouds are sometimes seeded with silver iodide to induce precipitation.人们有时在云里播撒碘化银,以诱使降雨.The migration of iodide ion between layers is controlled by barrier interlayers.碘离子在层间的扩散作用可以用隔层加以控制.Gas may play an important par...