Perfectiveness
完成时\\n完成式
🗣️ 情景例句
Well, Mrs. Herrera,
好，Herrera太太
I feel blue at the news.
我听到这消息而闷闷不乐。
They lived by hunting and by gathering roots, nuts and wild fruits.
他们靠狩猎和采集根茎、坚果和野果为生。