Teens in serious relationships did not differ from their abstinent counterparts in terms of their grade-point average, how attached they are to school or college expectations.
有着固定性关系的青少年在成绩方面与那些禁欲的同龄人相比，学习成绩并无差异，有着差异的是他们对于学习的期望值及对大学的期望值。
Just as in grade school when you're doing division and multiplication, you do it from left to right in terms of order of operations.
正像是在小学你做除法和乘法的时候，你毫不含糊地从左到右，按顺序做运算。
The reserve tanks at a reactor contain the same grade of water in terms of purity and chemical composition that are normally used in the core.
反应堆的储备箱里储备了与反应堆内同等纯度和化学构成的水。
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