妹妹的用法和樣例：
例句
-
我妹妹每周去一次美容院。
My sister goes to a beauty parlour once a week. -
＂在聰明的妹妹相形之下，她變得黯然失色。＂
She is quite eclipsed by her clever younger sister. -
我妹妹認為，她能極力說服父親提高她每月的零用錢。
My younger sister thinks she can argue Father into increasing her monthly pocket money. -
小女孩個子太矮，只好仰著頭看她的妹妹。
The girl was so short that she had to look up to her younger sister. -
他以戲弄他妹妹為樂。
He delights in teasing his younger sister.
