Warning: flock() expects parameter 1 to be resource, boolean given in /www/wwwroot/www.chaziku.com/e/class/connect.php on line 5100

Warning: flock() expects parameter 1 to be resource, boolean given in /www/wwwroot/www.chaziku.com/e/class/connect.php on line 5105
hydrogen英英释意- 查字库

看音标读英语

查字库

首页英语词典hydrogenhydrogen英英释意

hydrogen

英 ['haɪdrədʒ(ə)n] 美['haɪdrədʒən]

英英释义考试真题实用场景例句

n. [化学] 氢

英英释意

1. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe