您要查找的是不是：
- How old is his younger sister ? 他妹妹多大岁数?
- How old is his younger sister? 他妹妹多大岁数?
- The girl in red is his younger sister. 那个穿红衣服的女孩是他妹妹。
- How old is your sister? She is thirteen years old. 你的姊妹几岁？她十三岁。
- How old is your sister? She looks so young. 你姐姐多大了?她看起来很年轻啊。
- He is a head taller than his younger sister. 他比他妹妹高一头。
- He delights in teasing his younger sister. 他以戏弄他妹妹为乐。
- How old is your younger brother? How tall is he? 你弟弟多大了?他有多高?
- How old is John? He is one year old. 约翰几岁？他一岁。
- His younger sister is colouring a picture. 他的妹妹正在给一幅画涂上颜色。
- He solved the maths problem for his younger sister without any difficulty. 他毫不费劲地帮他妹妹解开了这道数学题。
- How old is Grandfather? I don't know. He never talks about his age. 爷爷多大了?我不知道,他从不提他的年龄。
- How old is his wife? 他妻子多大了?
- He baited his younger sister unmercifully. 他残忍地折磨他妹妹。
- He loved to bully his younger sister. 他爱欺侮他的小妹妹。
- Quite smart. How old is he? Can you guess? 挺帅的嘛，你猜他多大年龄?
- I see. How old is he,can I know? 我明白了，能告诉我他几岁吗?
- Roy did his duty by his younger sister. 罗伊对他的妹妹尽了义务
- How old is the Palace Museum, Li Ming? 李明，故宫有多少年历史了?
- His younger sister survived the accident. 在这场事故中,他的妹妹幸免于死。
