change alter vary都含“改變”的意思 。change 指“使改變得與原物完全不同”或“使發生以新代舊的變化”,如:The appearance of the town is quite changed.這個城鎮的外觀變化頗大。alter 指“區域性的、外表的變化, 但特點不變”, 如:This coat should be altered.這件外套應該改改。vary 指“不規則或連續地改變”, 如:Customs vary with the times.習俗隨時代而異。turnn.轉動, 旋轉, 轉變方向, 輪流, 時機, (一)回, 傾向, 癖性turnvi.變成, 變得; 變質, 變酸; 改變信仰; 變色The milk has turned.牛奶變質了。Maple leaves have turned crimson .楓葉已經紅了。The weather suddenly turned cold.天氣突然冷了起來。This afternoon will be cloudy, turning clear.今天下午陰轉晴。He later turned Moslem.他後來改信了伊斯蘭教。At a low temperature, water turns into ice.水在低溫時就結成冰。