Colloidogen
[医] 胶态原(使体内无机质保持胶态)
🗣️ 情景例句
at the Museum of Natural History.
在自然历史博物馆。
What excuse could he have for being so rude?
他做了那样无理的事，将如何辩解呢？
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，