Ffl
abbr. federal firearms license 联邦轻武器许可证; fixed and flashing 固定并闪光
🗣️ 情景例句
Time moved at a snail's pace before the holiday.
假期之前时间过得非常缓慢。
Is that all he thinks about?
他想的事只是这些吗？
Some live in large groups like the honey bee, and make their nests in trees or holes in the rocks.
有些蜂如蜜蜂是群居在一起，在树上或岩洞里筑巢。