Threaders
(threader 的复数) n. 螺丝车床；穿线器
🗣️ 情景例句
Miss Pappas?
Pappas小姐
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
and near its lower reaches there is a long tailing-off which is almost certainly the result of material transported out to deep water after being eroded from the continental masses.
在这个地带的低处是很长的一段尾沙地段，基本上可以断定这个地段是大陆块体上侵蚀下来的物质被水冲到深水处形成的。