He fixed me with those luminous, empty eyes and his melancholy smile.他笑容忧郁地凝视着我，闪亮的眼睛里空无一物。I was deeply aware of his melancholy as he stood among the mourners...当他站在致哀的人群中时，我深深地体会到了他的忧伤。...a blend of melancholy guitars a...
Flu virus can live on shared objects ( doorknobs, keyboards, counters, etc ).病毒可以在共用物品表面生存 ( 门把手 、 键盘 、 柜台等 ).The doorknobs, hinges and copper wiring were stolen, as were the appliances and carpet.门把手 、 铰链、铜配线, 还有家用电器和地毯...
My breaths were coming in gasps.我急促地喘起气来.Take some slow, deep breaths and give your body a bit of a shake.缓缓地深呼吸，并轻轻晃动身体。I paused in the hall to take three deep breaths to restore my equilibrium.我在大厅里停了一下，深吸了三口气以恢复平静。...
The sex of the embryo is predetermined at fertilization.胚胎的性别早在受精时就决定了。...an ideal system for studying the development of the embryo...研究胎儿发育过程的理想方法Metabolic activity quickly develops in the cells of the embryo and the a...