Ctc
abbr. 四氧化碳（全称Carbon Tetrachloride）
🗣️ 情景例句
It's good that you went back.
你回去是对的。
The United Nations conference is projected for next year.
联合国大会预定明年召开。
But a watch could never repair itself----it does not consist of living parts,
但是，手表决不会自行修理，它不是由有生命的部件组成，