He forms a cross-country group that races against other schools.
他组织了一个越野团体,与其他学校比赛。
The bear leader bear-led a group of wealthy young men on a cross-country hike.
家庭教师带领一组富家子弟作越野远足。
MethodThe study was a cross sectional survey, sampling the whole group aged 80 years and above, who live in Jiajian country, Bama County.
方法截断面调查,整群抽取巴马县甲篆乡80岁以上老人。
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