1·犯罪率已下降了70%。
Crime has gone down 70 percent.
—— 《柯林斯英汉双解大词典》
2·他至少70岁了！
He must be 70 if he's a day!
—— 《牛津词典》
3·她数出70元钱，都是10元一张的。
She counted out $70 in $10 bills.
—— 《牛津词典》
4·他们每小时达到70英里。
They were doing 70 miles an hour.
—— 《柯林斯英汉双解大词典》
5·他以每小时70英里的速度驾车行驶。
He was driving at 70 mph.
—— 《牛津词典》
6·70%的小学生成绩都在C级或C级以上。
70% of pupils got Grade C or above.
—— 《牛津词典》
7·我们地球表面的70%是水。
70% of our globe's surface is water.
—— 《柯林斯英汉双解大词典》
8·他60多岁，快70岁了。
He's nearer 70 than 60.
—— 《牛津词典》
9·尚未偿还的总债务额是700亿美元。
The total debt outstanding is $70 billion.
—— 《柯林斯英汉双解大词典》
10·70分或以上就可以得“优”。
A score of 70 or above will get you an 'A'.
—— 《牛津词典》