你如果把信封倒过来, 钥匙就会掉出.If you turn the envelope upside down, the key will fall out.她试了一下, 秘密的夹底果然开了, 里边掉出4封信.She tried it, the secret compartment opened, and out fell four notes.火炉里掉出一块炽热的煤把地毯烧了.A hot coal fell out of the fir...
Doctors are developing artificial wombs in which embryos can grow outside a woman's body.医务人员正在研制人造子宫,实现胚胎体外生长.Embryos successfully attached themselves to the walls of these laboratory wombs and began to grow.胚胎成功地附...
After Mike left for work I stripped the beds and vacuumed the carpets...迈克去上班后，我扯下了床罩并用吸尘器清扫地毯。I vacuumed and dusted the living room.我用吸尘器打扫了客厅，擦了擦灰尘。I vacuumed the carpets today.今天我用吸尘器清洁了地毯。After Mike left for work I s...