他中学时不擅长代数.He was not good at algebra in middle school.在代数里, 符号X常用来表示未知数.In algebra, the sign X usually denotes an unknown quantity.他的同学们正在绞尽脑汁地演算初等代数题.His classmates were labouring with elementary algebra....
她死于火灾中所受的灼伤.She died of the burns that she received in the fire.翻过身去,不然你的后背要被阳光灼伤的.Turn over or your back will get sunburnt.他不顾周身的灼伤, 一跃而起,向激战的地方冲去.In spite of his burns, he sprang up and rushed towards the fighting....