U-s
abbr. upper-stage 上级，顶级
🗣️ 情景例句
Money is something, not everything, but without money, you cannot do anything in this world.
金钱并不是万能的，但没钱是万万不能的。
Please accept my congratulations on your promotion.
请接受我对您提升的祝贺。
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。