Fhsas
(FHSA 的复数) 联邦危险物品法案（federal hazardous substances act）
🗣️ 情景例句
Come in, please.
请进。
Pain is forgotten where gain follows.
好了伤疤忘了痛。
Are you ready to place your order now?
你们准备好下订单了吗？