Kallidinogen
胰激肽原
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
Set a beggar on horseback and he'll ride to the devil.
小人得意，忘乎所以。
Past experience has taught us that certain accomplishments are beyond attainment.
以往的经验告诉我们有些事是办不到的。