Spectrocomparator
光谱比较仪
🗣️ 情景例句
Oh, I date occasionally,
哦 ，我偶尔约约会。
How much?How many?
共多少？
Then the Class 2 runner dropped his stick on the ground when he was passing it on to the fourth runner.
忽然2班的运动员在传棒给第四个运动员时，把棒弄掉到了地上。