你多大了?
how old are you? *在美国，出于礼貌是不问别人的年龄、体重和身高的。除非是自己比较熟悉的人，最好回避提这些问题。
i'm not old enough to drive. (我还不到开车的年龄。)
how old are you? (你多大了?)
i can't drink alcohol yet. (我还不能喝酒。)
how old are you? (你多大了?)
may i ask how old you are? (我可以问您的年龄吗?)
may i ask your age? (我可以问您的年龄吗?) *比较礼貌的说法。
我48岁。
i'm forty-eight.
你的体重是多少?
how much do you weigh?
what's your weight?
75公斤左右。
about seventy-five kilograms. *美国不用公制单位，而用pound磅(1磅大约453克，复数是pounds)。
我重164磅。
i weigh a-hundred-sixty-four pounds.
i weigh 164 ibs. *ibs.读为pounds。
你有多高?
how tall are you?
what's your height?