Point-source
[医]点源
🧩 词语组成解析
source
[sɔrs]
n. 根源，本源;源头，水源;原因;提供消息的人;
vt. （从…）获得;发起;向…提供消息;寻求（尤指供货）的来源;
vi. 原料来源;起源;寻求来源;寻求生产商（或提供商）;
source(rise)→泉源；源头
🗣️ 情景例句
Why do you want to work for this organization?
你为什么想加入这个组织工作？
Where will they be going for their holiday?
他们休假时要上哪去？
As we had had a long walk through one of the markets of old Delhi, we stopped at a square to have a rest.
当我们穿过旧德里的市场时走了很长一段路，我们在一个广场上停下来休息。