VOA慢速英语:依靠比特币活着的委内瑞拉人

n. [数] 分数; 一小部分，些微; 不相连的一块，片段; [化] 分馏;
[例句]She hesitated for a fraction of a second before responding
她在回答之前犹豫了一下。

black market

[词典] 黑市;
[例句]There is a plentiful supply of arms on the black market.
黑市上有大量武器出售。

refuge

n. 避难; 避难所; 庇护者; [医] 救急疗法;
vt. 给予…庇护; 接纳…避难;
vi. 避难; 躲避;
[例句]They took refuge in a bomb shelter
他们在防空洞中避难。

mining

n. 采矿（业）;
v. 在…中开采，开采(mine的现在分词); 在…中[下]布雷; 以地雷[水雷]炸毁;
[例句]He was born at Aberdare in South Wales, the son of a mining engineer.
他出生在南威尔士的阿伯德尔，是一位采矿工程师的儿子。

peer-to-peer

[词典] [计][WIN] 对等;
[例句]This is the nature of peer-to-peer and networking in general.
总的来说这是点对点和网络的天性。