halogen
n
(chemistry 化) any of the chemical elements fluorine, chlorine, bromine and astatine which form salts by simple union with a metal 卤素
[attrib 作定语]
halogen lamps/headlights 卤素灯[前灯].
🏥 医学释义
卤素,卤
🗣️ 情景例句
I'm thirty.
我三十岁。
Whom will you write to?
你将写信给谁?
Because they destroy so many insects, and insects include some of the greatest enemies of the human race.