Fluorexon
[化] 钙黄绿素
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
If the blind lead the blind, both shall fall into the ditch.
问道于盲，无益于事。
The doctor says that he will come at once.
医生说他马上就来。安迪，