Children and teenagers need nine to ten hours of sleep, while adults need six to eight.

儿童和青少年需要9到10个小时的睡眠，而成年人需要6到8个小时。

youdao

"Ten, nine, eight, seven, six...," he says.

“十，九，八，七，六……”他数着。

youdao

"Ten, nine, eight, seven, six..." The thrusters click off.

“十，九，八，七，六……”推进器解体。

youdao

Type II Diabetes used to be called Adult Onset Diabetes, but it's had to be renamed to type II Diabetes because kids as young as ten, and nine, and eight are developing it.

型糖尿病过去曾叫做成年始发性糖尿病,但它不得不更名为Ⅱ型糖尿病,因为有的才十岁,九岁,甚至八岁的儿童得这种病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now there's - one, two, three, four, five, six, seven, eight, nine, ten, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, a hundred?

NPR: Credit Markets Take Time To Thaw

How can we really blame a poorly educated woman for wanting a free cellphone when lobbyists secure seven-, eight-, nine-, and ten-figure favors from their cronies in government?

FORBES: What the "Obama Phone" Tells Us About America's Health

In eight African countries, over nine out of ten young women in rural areas have not completed lower secondary school.

UNESCO: One third of young people in Sub-Saharan Africa fail to complete primary school and lack skills for work | United Nations Educational, Scientific and Cultural Organization