努力make an effort/efforts to do something; with one's best efforts
反正come over from the enemy's side; indicating certainty or resolution
变化change in the state or nature of things;change
合作cooperate; collaborate with somebody in writing or composing
国际concerning all countries in the world; the world
它it; [used as a meaningless mock object]
导游conduct a sightseeing tour; tour/tourist guide
现金ready money; cash reserve in a bank
笔writing or drawing instrument; technique of writing, calligraphy or drawing