Observation board
[经] 观察板, 观测栏
🧩 词语组成解析
board
[bɔ:d]
n. 板;董事会;甲板;膳食;
vt. 上（船、车或飞机）;收费供…膳宿;使搭伙，使寄宿;强行登（船）;
vi. （火车、轮船、飞机等）接受乘客;搭伙，寄宿;
🗣️ 情景例句
Under these conditions of payment,-
在这种付款条件下，-
Never neglect an opportunity for improvement.
抓住大好时机，切莫等闲错过。
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。