Fluorescent penetrant
[化] 熒光滲透劑
?? 詞語組成解析
fluorescent
[flu?'res?nt]
adj. 熒光的;發熒光的;（顏色、材料等）強烈反光的;發亮的;
n. <美口>熒光燈;日光燈;
a. 滲[穿]透的
??? 情景例句
When Alexandra arrives,
等Alexandra到達時，
Where do you have your lunch?
你在哪兒吃午飯？
Ducks know how to swim when they are born.
鴨子天生會游泳