high mark

基本解释

She said that she must work hard to get a high mark.
她说她必须得努力学习得高分。
When the balloon reaches the 22-mile-high mark it pops because the air pressure is too weak to keep the helium inside.
当氦气球升至 22 英里高时，由于周边气压太弱，氦气球膨胀爆裂。
To break the kilometer-high mark (which is 3281 feet), the $7 billion–plus Mubarak al Kabir will have three interlocked towers that support the overall structure.
为了使建筑高度超过1公里，这座耗资70多亿美元的建筑将使用三座联锁在一起的高塔互相支撑。

Mark is incredibly good at keeping the bar very high on new hires.
在招聘时,马克从不降低标准。
斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选
And Mark has been extraordinary, as a leader, in maintaining a very high bar and at times, walking away from people who are receiving outstanding recommendations but either don't fit from a cultural standpoint or they're not going to scale and they'd be the wrong person a year or two from now.
作为Facebook的领导者，马克始终坚持选人标准，从不手软，他经常会放弃一些,得到强有力推荐的应聘者,他们要么是在文化方面不契合,要么是因为，如果公司没打算扩张,那他们在一到两年内,会成为错误选择。
斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

But she left on a high note, having helped craft Journey -- not just one of the best games of 2012, but a high mark on the medium.
ENGADGET
Released Thursday, the latest data show the index just shy of the all-time high mark hit back in February, 26% above its measure a year ago. (Read On The Verge Of A Global Food Crisis).
FORBES: Highly Leveraged Agriculture Will Keep Food Prices Volatile And High