Retardin
阻滯素, 延緩素
?? 擴展釋義
【醫】 阻滯素(胰的激素之一,主要調節脂肪代謝)
??? 情景例句
He's not making much progress with his English.
他的英語進步不大。
It is no honour for an eagle to vanquish a dove.
老鷹勝鴿，不足為榮。
After some time, the bus stopped.
過了一些時候，車停了。