His entrance was announced by a buzzer connected to the door.他刚一进去，与门相连的门铃便嗡嗡作响。The buzzer suddenly responded in a long blast of sound.蜂鸣器突然相应地发出了一声响亮的长鸣。The buzzer went off at eight o'clock.蜂鸣器在8点钟时响了....
We pressed the buzzer in our cabin and a steward arrived instantly.我们按了客舱的呼叫器,一个乘务员马上来了。The buzzer suddenly responded in a long blast of sound.蜂鸣器突然相应地发出了一声响亮的长鸣。The buzzer went off at eight o’clock.蜂鸣器在8点钟时响了。Two wiring...
老鼠将箱角噬去.The rats have gnawed the corner of the box off.肺泡巨噬细胞主要是从骨髓中分化出来的.The alveolar macrophage is derived largely from the bone marrow.肺泡巨噬细胞特别富含各种蛋白质水解酶.The alveolar macrophage is particularly rich in the variety of ...