有些唾液酸位于溶酶体的外表面.Some sialic acid is on the external surface of lysosomes.包括酯酶的一些, 可以位于完整溶酶体的外表面.Some, including an esterase, may be on the outside of intact lysosomus.正常情况下细胞溶质中不存在溶酶体的酶.Lysosomal enzymes are not normally ...
他未经咀嚼就把食物咽下.He swallowed without chewing.她咽下了一粒梅核,几乎哽死.She swallowed a plum - stone and was almost chocked.我咬了一大块面包和奶酪，强咽下去之后开始说话。I bit into a hefty slab of bread and cheese. When I had got it down I started talking....
他鼓励地拍了拍她的手臂就离开了.With a reassuring pat on her arm, he left.“ 三弟的话很有道理,琴妹,就这样决定罢, ” 觉民鼓励地说." Chin, there's something in what he says. Make up your mind, " Chueh - min encouraged....
To van Loon, human achievement mattered above all things.对房龙来说, 人类的成就比一切都重要.Why are loon hatchlings in Wisconsin emerging deformed from their eggs?为什么维斯康新州的潜鸟幼儿从它们蛋中孵化就是畸形?Van Loon did not shy away from controversial sta...