Moving up from tenth to eleventh grade was a major one.
从十年级升到十一年级是个重要的阶段。
In second grade, our teacher lined up my class on the playground and had each of us race across the monkey bars2, swing from one high rod to the next.
上二年级时，我们的老师叫我们班同学列队在操场上进行猴架比赛，从一个高杠悬荡到下一个杠。
It involves one or two years of half-day preschool, and up to four additional years of educational and family services in grade school.
它包括一或者两年的半日制学前学习，而且在孩子正式进入学校之后，仍旧有4年之久的教育和家庭服务。
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