Unprofited
a. 无益的
🗣️ 情景例句
By the way, how is your wife doing, Harrison?
顺便问一下，贵夫人近来可好吗？
You need to transfer at central station.
你必须在中央车站换车。
I doubted whether the story is true.
我怀疑那故事是不是真的。