49.用流水冲洗伤口

　wash the wound with cold running water

48.处理常见伤 deal with common injuries

47.阻止事情发生 prevent bad things from happening

46.用来纪念这位伟人

　in honor of this great man

45.某事发生在某人身上 sth happen to sb

44.关掉所有的电源 turn off all power

43.他根本就没经验

　he has no experience at all

42.太靠近湖　 get too close to the lake

41.煤气中毒　 be gas-poisoned

40.死于突发性心脏病　

die of a sudden heart attack