Platinum foil
[醫] 鉑箔, 白金箔
?? 詞語組成解析
platinum
[['pl?tin?m]]
n. 白金, 鉑, 銀灰色\\n[化] 鉑Pt
foil
[f?il]
n. 箔，金屬薄片;陪襯，陪襯物;（鏡底的）銀箔，（寶石等的）襯底;（船）翼;
vt. 用…陪襯，襯托;鋪箔于;[建]給…加上葉形飾;挫敗，使受挫折;
??? 情景例句
She has now held the post of Prime Minister longer than anyone else this century.
她現在擔任首相任期之長在本世紀是前所未有的。
Do you have any tickets available for that date?
你們有那天的票嗎？
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走過一個波長所需的時間）。