know'st sat'st 问 'ST 是什么意思dove-like sat'st brooding on the vast abyss'ST 是FIRST的意思吗?怎么读这句话,dove-like sat first brooding on the vast abyssInstruct me, for Thou know'st, 'ST是 first的意思吗'st有很多不一样的意思吗?