Fhsa
联邦危险物品法案（federal hazardous substances act）
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
Almost every process is computerized.
几乎每一道工艺都是由电脑控制的。
That would be a waste of money. What's your opinion?
那就浪费钱了。你的意见呢？