根据汉语意思完成句子
把一个正六边形沿对角线剪成四个三角形，不同的剪法有（ ）注：经过旋转、翻折能够重合的剪法都算作不同的一种．
—As we know it's difficult to live in a foreign country.
—________ if you can't understand the language there.
