This sounds like a barrage of accusation—I don'tintend it to be.这听起来像是接二连三的指责——这并非我的本意。A barrage would halt the flow upstream and lift the water level.一道拦河坝将会在上游拦住水流，抬升水位。The attack jumped off under cover of a barra...
These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层.The mucous cells lie in the anterior part of the foregut and cloaca.粘液细胞分布于前...
Down below them was the sea of upturned faces.他们下面是无数张仰望的脸。He clung to the upturned boat, screaming for help.他紧紧抓着住倾覆的小船，高呼救命。He came into the room, his overcoat collar upturned.他进屋时大衣领子向上翻起....