Following these policies, the primary school launched an "agricultural class base" on one of its schoolyards.

遵照这些政策，这所小学在其中一个操场上开设了“农业课基地”。

Two decades ago, sports for children were often unorganized, with pick-up games common in schoolyards and community parks.

20年前，孩子们的体育运动是无组织的，只是在校园或公园里的普通而随意的游戏。

There were more than 50% of urban plants could be found in parks and schoolyards, which was a species pool in Beijing built area.

公园、学校校园植物的总种数都占城区五环内植物总种数的5 0 %以上，是城区植物的物种库。

Some of the cruelest bullying in elementary schoolyards occurs invisibly between girls, who don’t hit, but whisper things like, “Let’s not be friends with Tina.”

在一些小学校园中发生的最残酷的恃强凌弱发生在女孩子之间，她们不打架，但是她们会在私底下说“我们不要和Tina做朋友”。