Overunder
(叠筒枪)双筒上下重叠的
🗣️ 情景例句
And we'll also need some ladders
而且我们还需要一些梯子
I learned geography last week.
我上星期学地理。
he answered me, but he spoke neither slowly nor clearly.
他回答了，但他讲得既不慢也不清楚。