弗朗西斯决定把机器藏在带铰链的嵌板的后面。Frances decided to conceal the machine behind a hinged panel.在那片寂静之中，铰链吱吱嘎嘎的声音听起来很响。The creaking of the hinges sounded very loud in that silence.安上铰链插销，让门锁更牢靠。Fit hinge bolts to give extra support to...
心脏有瓣膜控制血液流进流出.The heart has valves to let blood flow in and out of it.二尖瓣狭窄的病变是在心肌而不是在瓣膜.The abnormality mitral stenosis was in myocardium, not in the valve.他们是那些最不适于作瓣膜切开术的患者.They are patients in whom the valvulotomy wa...
He has been poaching on her land for years, poaching mainly fish and rabbits.数年来他一直在她的土地上偷猎, 主要捕鱼和偷猎兔子。You will need a pot of broth for poaching.你需要一锅汤来煮。The union was accused of poaching.该工会被指挖人墙脚。Many wildlife parks ar...