Bellcore
贝尔通信研究所
🗣️ 情景例句
I have the key, but it doesn't work.
我有钥匙， 但是开不开箱子。
Don't bury your head in the sand.
不要逃避现实。
It's a good idea to hold such conferences.
召开这样的会议真是个好主意。