| 例句 |
Twins and triplets are expected to have lower birth weights than single infants.双胞胎和三胞胎的出生体重应该比单胎轻。I was amazed when my doctor told me I was going to have triplets.当我从医生那儿得知自己要生三胞胎时，我惊讶万分。We discussed the difficulties of child care of twins or triplets for working mothers.我们讨论了职业母亲照看双胞胎或三胞胎的困难。To give birth to triplets is perhaps harder than to win a lotto.要生三胞胎恐怕比中乐透还难。 |