双白

例句：

1. 1. My parents are very supportiveof my studies.
   我的父母非常支持我的学习。
2. 2.They have two children, one boy andone girl.
   他们有两个孩子，一个男孩和一个女孩。
3. 3. The parentswere worried about their child's safety.
   父母担心孩子的安全。