卵最后在母兽的育儿袋内孵化了.The eggs eventually hatch inside the mother's pouch.在我把我松弛的肚子和袋鼠的育儿袋相比时, 你不要说任何话.When I compare my flabby tummy to a kangaroo pouch, say nothing.小袋鼠自从出生起就一直生活在妈妈的育儿袋里.At birth, the baby kangaroo lives...
Stick around a while and see what develops.呆上一会儿,看看会发生什么.Why don't you stick around?你为什么不在附近待着?OK, stick around, you can handle the phone. "好吧, 别走,就呆在这儿, 你可以守守电话. ”...
她用缝纫机缝制了这些裙子。She sewed the dresses on the sewing machine.我得花150美元买这台缝纫机.I have to pay 150 dollars for the sewing machine.这部旧缝纫机大概到了被淘汰的时候了.It's about time this old sewing machine was put out to pasture....
“请原谅我礼数不周，”她平静地说。“我忘了自我介绍了。”"Forgive my manners," she said calmly. "I neglected to introduce myself."他直截了当且礼数周全，但是态度冷淡。He is direct and courteous but distant.在古代礼数是十分森严的,稍有僭越就会有杀身之祸.All that the soldiers in ancient times...
The alveolar macrophage is derived largely from the bone marrow.肺泡巨噬细胞主要是从骨髓中分化出来的.The alveolar macrophage is particularly rich in the variety of proteolytic enzymes.肺泡巨噬细胞特别富含各种蛋白质水解酶.At any time the macrophage system m...