Technetides
[pl. ][化]锝系元素
??? 情景例句
I think I want to study journalism
我想學新聞學
Take one's courage in both hands.
勇往直前，敢作敢為。
Some of this heat near the earth's surfact is used to make electricity.
靠近地表的一部分熱量已被用來發電。