Oughtness
有义务的状态
🗣️ 情景例句
Please excuse me for a minute.
失陪一会儿。
Just a minute and I'll see if there are any flights.
等一下，我来看看有没有班机。
But when the train dawdled at station after station, I began to wonder,
但是，当火车一站接着一站往前蠕动时，我便产生了怀疑。