Stereocenter
立构(规正)中心
🗣️ 情景例句
Robbie left early this morning to meet Alexandra. Robbie
早上很早出去接Alexandra。
It's most valuable.
这最有价值。
It is all too easy to blame the railway authorities when something does go wrong.
因此，一旦铁路上真出了问题，人们便不加思索地责备铁路当局。