重點講解：
1. be sth. to do with sth.
與…有關；關于；
eg. They were shouting at each other. It was something to do with money.
他們在吵架，是為了錢的事oz;lGK!LbexLc_。
eg. My new job is something to do with marketing.
我的新工作和市場營銷有關6hCA9GSC%n#C_QEr=-oh。
2. knock out
使不省人事；使入睡；
eg. He was knocked out by a single blow to the head.
他頭上只被打了一下便昏過去了(,3.dzKprIvJ2&。
eg. The police was hit on the head and knocked out.
警察頭部被擊，暈倒了IFas@+%UJo2FjqWUe。
3. laugh at
嘲笑；譏笑；
eg. Don't laugh at unfortunate people.
不要嘲笑不幸的人We(cZdEnJ4owU*]^f。
eg. They laughed at my puny efforts at rock-climbing.
他們取笑我在攀巖活動中的那可憐勁兒Y1uopw#IWGi]h=668。