Harvest the center flower-bud cluster of broccoli when it reaches the size you want and while the buds are still tightly together.

VOA: special.2010.03.09

We normally think of teaching as a synchronic process, you and I are in the same place and in the same time while we are learning, when in fact at least right now we are not.

我们通常设想教学是限于一时的过程，你我在同一地点,同一时间学习，但事实上至少现在就不是这样。

麻省理工公开课 - 媒体、教育、市场课程节选

And I met her when we were here interviewing for the Park Scholarship that we're both part of while we're here,

当时，我们是来学院接受帕克奖学金的面试。后来我们俩都获得了这份奖学金，

康奈尔的教授不一样 - SpeakingMax英语口语达人

Or, identifying how many more issues are allowed to become bigger and highly visible when unemployed, and not while working.

FORBES: Prolonged Unemployment: Problem Solve, Cope and Stay Resilient

Offered the chance to visit, one person's eyes light up wondering how and when, while another's squint under knitted brows that say What on earth for?

FORBES: Go with the Floe

The hard-wearing material provides warmth and protection when trekking through the bogs and heather, while also serving as camouflage for the stalker on the hunt.

FORBES: Fraser Balgowan: From the Scottish Highlands to Fifth Avenue