Refiltration
n. 再過濾
??? 情景例句
He's not crying anymore.
他不再哭了。
The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
這個型號的錄音機，按今天匯率，每臺2500比利時法郎。
Lucy and I go to school six days a week.
魯茜和我每周上六天課。