母亲为胎儿提供营养和成长的空间。The mother provides the embryo with nourishment and a place to grow.这一新技术已经被用来鉴别胎儿的性别。The new technique has been used to identify the sex of foetuses.他像胎儿一样蜷曲地睡在那儿。He was asleep there, curled up in the fe...
Bluegrass is really bright green but looks bluish from a distance.青草是亮绿色的,但从远处看带点蓝色.She listened to traditional mountain music called bluegrass.她经常听一种叫做“蓝草”的传统山村音乐.He s also the host of a bluegrass radio show and is also...