它本质上是一本词典，不过有一些独特之处。

It's ___essentially a dictionary, though it has a few unique features.

他的陈述基本上正确，只有少许不准确之处。

His statement is ___essentially correct, with only minor inaccuracies.

他们本质上是支摇滚乐队，但融入了传统民歌曲调。

They're ___essentially a rock band, but they blend in traditional folk melodies.