重點講解：
1. as well 也；還；
例句：It is most often diagnosed in women in their thirties and forties, although I've seen it in many younger women, as well.
這種病一般多發于三四十歲的女性，但我也見過許多更年輕的女性患這種病=l!mQkCVbR4]CYP。
2. once in a while 偶爾；間或；
例句：Earrings need to be taken out and cleaned once in a while.
耳環要偶爾取出來清洗一下5wqu(d@03YytpF%k。
3. get in contact with 聯系；聯絡；
例句：Finally he managed to get in contact with them.
他終于設法與他們取得了聯系MGx&.0,Qd)0]FS=].q。
4. each other 彼此；互相；
例句：They show reciprocal affection to each other.
他們表達了彼此之間的愛慕d9[f*oIc%txM|+.#+9。