Chromosorb
红色硅藻土色谱载体
🗣️ 情景例句
Can I help you?
我能帮你忙吗？
I only wear a tie on special occasions.
我只有在特殊场合才带。
'Then I'll come with you,' he answered.'There's always plenty to read in the waiting room!
“那我也跟你去，候诊室里总有很多东西可供阅读！”他回答。