How could HB pencils be a security matter? !

HB 铅笔怎么可能事关安全？

You may see, too, the letters H for hard, B for black, or HB for both hard and black, which are stamped on the pencil.

你可能也看见了，字母H代英语的Hard（硬），字母B代英语的Black（黑），HB就代又硬又黑。

Now, unless you're an artist, you've probably never even seen a pencil that's not number 2, also known as an HB pencil outside the U.S.

现在，除非你是家，你可能从来都没有看过 2 号以外的铅笔，2 号铅笔在美国以外的国家被称作 HB 铅笔。

HB 3979 is sponsored by Texas State representatives Steve Toth who said in an interview with the national review the facts are very clear very explicit.

HB 3979由德克萨斯州代SteveToth赞助他在接受国家评论采访时说事实非常清楚，非常清楚。