Every successive element of fluid undergoes the throttling process in a continuous stream.在连续的流动中,每一流体元相继地经历节流过程.All living matter undergoes a process of metabolism.生物都有新陈代谢.After reproduction of the viral nucleic acid t...
Textured materials appropriate for birdbaths, streams , and pools include sand, stones , pebbles, and concrete.沙子 、 石块、鹅卵石 、 混凝土这一类有纹理的东西很适合于这类工作.I threw pebbles at the hens, and that made them jump and squawk.我朝母鸡扔卵石，吓得...