Boltaction
（步枪）有用手操作的枪机的
🗣️ 情景例句
A red sky at night indicates fine weather the following day.
晚上天边红预示着明早天气好。
Tom's been feeling blue ever since his divorce.
自离婚以来，汤姆一直很忧郁。
When it did so, it sent sparks down to the ground and these immediately started a fire.
当它这样做时，把火花送到了地面，这些火花立刻引起了一场大火。