Spiran
[机] 螺环化合物
🗣️ 情景例句
Would you like to discuss it over lunch, Mr. Smith?
史密斯先生，吃饭时再讨论好吗？
Self-trust is the first secret of success.
自信是成功的首要秘诀。
There was a big smile on her face.
她脸上充满笑容。