夕阳染红了半边天空，真是赏心悦目。(engage)

The setting sun colored half of the sky red, which engaged both the mind and the eye.

考查定语从句和时态。发生在过去用一般过去时，主语 “夕阳” 为the setting sun；表示 “染红了半边天空” 可翻译为color half of the sky red；后跟非限制性定语从句修饰上文句子，从句缺少主语，故用which；表示 “赏心悦目” 翻译为engaged both the mind and the eye。故翻译为：“The setting sun colored half of the sky red, which engaged both the mind and the eye.”。