the upper half of the class
上半部分的学生
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Central heating was present in every upper-middle-class home by the second half of the 19th century.
到19世纪下半叶，中央供暖系统已出现在每个中上层家庭里。
youdao
Central heating was present in every upper-middle class home by the second half of the 19th century.
到19世纪下半叶，中上层阶级家庭都用上了中央供暖。
应用推荐
模块上移
模块下移
不移动