Tetrabromide
四溴化物
??? 情景例句
Harry, it's the perfect job for you. You'll love it. Harry
那是份最適合你的工作。你會喜歡的。
He irons sweaters every day.
他每天都燙衣服。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他們知道了鉆透那堅硬的巖石有多么困難，他們會喪失信心的。