At that age, aircraft have typically lost half their value.

这样机龄的飞机价值通常会下降一半。

Overnight, the Egyptian pound lost half its value against the dollar.

一夜之间，埃及镑兑美元汇率下跌了一半。

The Iranian rial has lost half its value since December, despite attempts by the regime to prop it up.

自12月以来伊朗货币里亚尔贬值50%，尽管政府做出各方努力提振里亚尔，但是也无力回天。

Semiquaver is half the value, half the length of the quaver.

八分音符是值的一半，八分音符长度的一半。