וּבַמֶּרְכָּבָ֥ה הַשְּׁלִשִׁ֖ית סוּסִ֣ים לְבָנִ֑ים וּבַמֶּרְכָּבָה֙ הָרְבִעִ֔ית סוּסִ֥ים בְּרֻדִּ֖ים אֲמֻצִּֽים׃
第三輛戰車套著白馬，第四輛戰車套著有斑點的、灰色的馬。
Rashi
spotted They are spotted. [Their function is] to cause Greece to mount, [as Greece] oppressed Israel with various kinds of decrees
Rashi
ash- colored to cause Edom and Ishmael to mount, but I do not know the expression אֲמֻצִּים. Jonathan rendered: ash-colored.