This is far better than that.
これはあれよりずっとよい
This is far from being true.
まったく本当らしくない
This is good enough.
これで結構です（◆「十分によい」という意味ではない）
This is good stuff.
((英))いい出来だ
This is guy talk.
これは男同士の話だ
This is his book, (and) not mine.
これは彼の本で，私のではない
This is his very own room.
これは彼専用の部屋だ
This is in reply to yours of the 15th inst.
((やや古))本月１５日付の貴簡にご返答申しあげます
This is just about the worst article I have ever read.
今まで読んだ中でほぼ最悪の論文［記事］だ
This is just between you and me [ourselves].
ここだけの話だよ
