And one more thing to note about 'drought' is that the pronunciation and the spelling are quite different so we spell it d. r. o. u. g. h. t. But it's pronounced 'drought'.

关于 " drought" ，还有一点需要注意，那就是发音和拼写非常不同，所以我们拼写为 d. r. o. u. g. h. t。但它读作“drought”。

Several other consonants have also shifted (" d" to " t" , " k" to " h" , " t" to " th" , etc), disguising to some extent the common ancestry of many of the daughter languages of Indo-European.

其他几个辅音也发生了变化（“d”变成了“t”，“k”变成了“h”，“t”变成了“th”等），在某种程度上掩盖了印度语许多后代语言的共同祖先。欧洲的。