 A standard set of balls for the snooker table consists of 15 reds, 6 colours and 1 white / cue ball. Historically, snooker balls were made exclusively from heavy ivory. Thankfully, these quickly became a thing of the past and were replaced before the Second World War by lighter1 Crystallite balls made from the crushed shin bones of cows. Today, snooker balls are entirely2 made from synthetic3 materials.
一套标准的斯诺克台球用球由15只红色球、6只彩色球和一只白/主球组成。历史上，斯诺克用球只能用沉重的象牙来制造。谢天谢地，这很快就成为了历史，在第二次世界大战之前，更为轻便的微晶球取而代之，它们由碾碎的母牛胫骨制成。而如今，斯诺克用球全部是用合成材料来制造。
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