1.His sister Sarah helped him.
他姐姐萨拉帮助了他。
2.She's a good head taller than her sister.
她比妹妹足足高出了一个头。
3.And how is my sainted sister?
我那大好人姐姐怎么样？
4.My sister was parked down the road.
我妹妹把车停在了马路那头。
5.My sister puzzles me and causes me anxiety.
我的妹妹常会让我不解，使我焦虑。
6.His sister screamed out that he was crazy.
他姐姐大叫着说他昏了头。