Photonics
[复]n.[用作单][物]光子学
🗣️ 情景例句
What are you getting at?
你想说明什么？
I bought one gallon of milk.
我买了一加仑牛奶。
We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.
我们都非常激动，盼望着奥运会的到来，因为在这个国家里还从未举办过奥运会。