单词有: ninety, eighty, twenty, fifty...Her weight was under ninety pounds.她的体重不足90磅。
You got here with ninety seconds to spare.你们到达这里时还剩有90秒钟。He's getting on for eighty.他近八十岁了。Eighty horses trotted up.80匹马小跑上来。I am twenty this year.我今年二十岁了。This toy is worth twenty.这个玩具价值二十美元。
twenty fifty seventy
sixty
thirty:三十,从三十一到三十九中都有这个单词,它们是thirty-one, thirty-two, thirty-three, thirty-four, thirty-five, thirty-six, thirty-seven, thirty-eight, thirty-nine, forty四十,从四十到四十九中都有这个单词,它们是forty-one, forty-two, forty-three, forty-four, forty-five, forty-six, forty-sevsn, forty-eight, forty-nine.