Teen-agers; Strength is trained; Factor.

青少年；力量训练；因素。

youdao

In order to improve teen-agers' quality education, we must optimize the social environment.

为了提高青少年素质教育水平，必须优化社会环境。

youdao

In order to improve teen-agers' quality education, we must optimize the social environment.

为了提高青少年素质教育水平，必须优化社会环境。

youdao