What are the reasons for the discrepancy between girls' and boys' performance in school?

女生和男生在学校表现不同的原因何在呢？

《牛津词典》

Good morning, girls and boys!

孩子们，早上好！

youdao

For both girls and boys, it is usually complete by the age of 18.

对于女孩和男孩来说，它通常在18岁以前结束。

youdao

They had six children over a seven-year period, four girls and two boys.

VOA: special.2010.04.18

These 6- and 7-year-old boys and girls knock the snot out of the ball--with five strikes they get their chances--but outs in the field are infrequent, and always accidents.

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Mr Peckham also pointed out that two single-sex toilets - one for boys and one for girls - would need one man and one woman to supervise them, whereas the unisex facilities would only need supervision by one member of staff of either gender.

BBC: Head defends unisex toilets

That starts by treating this moment not as some global airing of our dirty laundry but rather a national awakening to the reality that all of us -- girls and boys, women and men -- must do our part in cleaning it.

CNN: India can learn respect for women