Spectralite
光学玻璃
🗣️ 情景例句
I know they are.
我知道他们会。
You'll have to decide whether you want to pass your examinations or just have a good time.
你必须决定你是想通过考试还是好好玩一玩。
The boss's handwriting is terrible!
老板的书写太糟糕了！