Obser
abbr. observant 严格遵守…的
🗣️ 情景例句
This is no small accomplishment.
这是非同小可的成就。
You have a radio,don't you?
你有一台收音机，对吗？
To finish so much work in a day is impossible.
一天之内干完这么多事是不可能的。