Wall flow
[化] 壁流
?? 詞語組成解析
flow
[fl?u]
vi. 流;垂;流出;（談話、文體等）流暢;
n. 流動;滔滔不絕;漲潮;連貫;
vt. 使泛濫;淹沒;排出;
??? 情景例句
Anything special you want to talk about?
有什么特殊的事要談嗎？
To fall to pass the exam
考試落榜
He put a glass dish with sugar water and honey to the west of the hive. A marked bee fed itself from the dish and returned to the hive.
他在蜂箱的西面放一個裝有糖水和蜜蜂的玻璃碟子。