單詞有: ninety, eighty, twenty, fifty...
Her weight was under ninety pounds.
她的體重不足90磅。
You got here with ninety seconds to spare.
你們到達這裏時還剩有90秒鐘。
He's getting on for eighty.
他近八十歲了。
Eighty horses trotted up.
80匹馬小跑上來。
I am twenty this year.
我今年二十歲了。
This toy is worth twenty.
這個玩具價值二十美元。
thirty:三十,從三十一到三十九中都有這個單詞,它們是thirty-one, thirty-two, thirty-three, thirty-four, thirty-five, thirty-six, thirty-seven, thirty-eight, thirty-nine, forty四十,從四十到四十九中都有這個單詞,它們是forty-one, forty-two, forty-three, forty-four, forty-five, forty-six, forty-sevsn, forty-eight, forty-nine.