Alston
n. 阿尔斯通（当今世界铁路设备市场的五大供应商之一）；奥尔斯顿（男子名）
🗣️ 情景例句
Thank you for calling us.
谢谢你打电话给我们。
I'd like to ask you just one question.
恕我请教你一个问题。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。