The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
这个型号的录音机,按今天汇率,每台2500比利时法郎。
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量(整个宇宙是否如此,目前尚有争论)。