comment是可数还是不可数？

名词 n. [C][U]

1.注释,评注[(+on/about)]
2.批评,意见,评论[(+on/about)]
He made no comments on our proposal.
他对我们的建议没有作评论。
3.闲话,议论[(+on/about)]
His conduct at social gatherings created a lot of comment.
他在社交聚会上的表现引起许多闲话。