Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
疯狂英语精华演讲卡
口语突破听力（一）
📚 句中词汇解析
从本句中提取的重要词汇
adj. 多云的;阴天的;朦胧的;愁容满面的;
💡 cloud云+y...的 →多云的
"Only a tiny patch of blue was visible in the cloudy sky."
多云的天空中只见到一小块儿湛蓝.
近义：muddy, turbid, murky, hazy, misty, nebulous
反义：limpid, unclouded, clear
adj. 突然的，未预见到的;急躁的，仓促的;快的，迅速的;急剧;
💡 傻等（谐音）：事太 突然，让你傻等 速(su)打(d)倒(d)恩(en)人，太 突然
"She was totally bewildered by his sudden change of mood."
他的情绪突变搞得她全然不知所措。
近义：hurried, abrupt, lightning, precipitant, precipitate, precipitous
反义：stepped, probable, expectable, expected
n. 雨;（热带地区的）雨季，雨天;雨点般降落的东西;<俚>电子流;
vt.& vi. （雨）降下，（使）降落;大量地给，（使）大量落下;
💡 润（谐音）：春 雨润物细无声
"By the looks of it, we shan't have much rain this month."
看样子这个月雨水也不会很多.
近义：shower, rainfall, pluvial
v. 变为，成为（ become的过去式 ）;
"She was made her father's attorney when he became ill."
她在父亲生病时代理父亲的事务。