He is trying his best to break the record.他正在尽最大努力去打破记录.He did very well, but failed to break the record.他做得很出色, 但未破记录.He did very well, but he failed to break the record.他干得很好, 可是没能打破纪录....
他尝试着把牙齿放入牛奶 、 水和细胞培养液中.He tried putting teeth into milk, into water, and into cell - culture medium.然而, 在家里或学校里很少人手边有细胞培养液.However, few people keep cell - culture medium handy at home or in school.细胞 培养液 能够最好地在口外保持掉牙健康.T...