Optical shutter
[计] 光闸
🧩 词语组成解析
🗣️ 情景例句
Then in that spirit let each of us give thanks.
现在本着同样心意，让我们开始感恩。
Not only did he make a promise, but he also kept it.
他不仅许下诺言，而且遵守了。
Thank you very much.
非常感谢。