重點講解：
1. take on 與(尤指實力比自己強的人)較量；接受…的挑戰；
The world's most prestigious insurance company was last night squaring up to take on MPs who have accused it of being riddled with corruption.
世界上最負盛名的保險公司昨晚作出回應，要和那些指責其腐敗泛濫的議員們較量一番AFt3U;5kf[KU。
2. set fire to 放火燒；使燃燒；
They set fire to vehicles outside that building.
他們縱火焚燒了停在那幢大樓外的車輛Lnu~wd[]8fo.)X(t@8X!。
3. break into 強行進入；闖入；
There was no one nearby who might see him trying to break into the house.
附近沒有人可能會看見他試圖闖入房子里R~ALDGYbk*5Pl(H*。
4. call on sb. to do sth. 要求；呼吁；號召；
I call on everyone to renounce the use of violence and armed struggle.
我呼吁每個人都放棄使用暴力和武裝斗爭#.2OUY!~aTQJ。