Beets need the acidity level in the soil to be six to seven and a half.

VOA: special.2010.03.02

OK. Now, fortunately we're not going to start with Turing's six primitives, this would be really painful programming, because they're down at the level of, "take this value and write it onto this tape."

好了，现在，幸好我们能开始讲述,图灵的六个基本类型了，这会是非常痛苦的编程，因为它们只在这个阶段上，“拿到这个结果并写在这一卷磁盘上“

麻省理工公开课 - 计算机科学及编程导论课程节选

When the city was founded about one thousand six hundred years ago, the level of the Adriatic Sea was almost two meters lower than it is today.

VOA: special.2009.04.22

Six South Koreans were killed when the water in the shared Imjin River rose quickly to twice its usual level.

VOA: standard.2009.09.09

Almost one in four unemployed workers is experiencing an unemployment spell of six months or longer, the highest level in over 25 years,".

VOA: standard.2009.04.03

The World Gold Council says, in the first half of the year, India's gold imports slumped by 26 percent, dropping to their lowest level in six years.

VOA: standard.2009.09.19

All are highly-educated management-level professionals who previously earned six-figure salaries.

VOA: standard.2010.07.28

In fact,U.S.and NATO military commanders say insurgent violence rose nearly 60 percent between the first six months of this year, compared to last year the highest level of violence since 2001 when the Taliban government was ousted by US.led forces.

VOA: standard.2009.06.15

The World Health Organization says it needs to see clear evidence of sustained community transmission of the swine flu virus from person-to-person in at least two regions of the world before it raises its alert to the phase six pandemic level.

VOA: standard.2009.05.14