Flow fluctuation
[化] 流量波動
?? 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;
fluctuation
[,fl?kt??'e??n]
n. 波動，漲落，起伏，[物]脈動;動搖不定，躊躇;[生]彷徨變異;
fluctu 波浪 + ation 表示行為、情況、狀態、過程、結果 → n.波動, 起伏
??? 情景例句
She's a terrific person.
她人很好。
Good luck!
祝你好運！
He could not find his fifty pence piece anywhere, and what is more,
但他摸了半天也沒找到那50便士硬幣，