Packet switching centre
[计] 包交换中心
🧩 词语组成解析
[计] 交换\\n[经] 转换, 调换, 调头
centre
['sentər]
n. 中心;（市镇的）中心区;中心点;中枢;
vt.& vi. 置于中央;集中;把…当作中心;（使）成为中心;
🗣️ 情景例句
I want to buy shares in multi-national pharmaceutical company.
我想购买一家跨国医药公司的股票。
In college I majored in physics, What was you major?
大学时我主修物理，你主修什么呢？
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。