Before gummed envelopes became common in the 1800s, letters were posted with no security wrapper.

在19世纪涂胶信封普及之前，信在投递时没有安全性包装。

Then, too, the books had to be got together, gummed or sewn.

然后，这些书也必须放在一起， 涂胶或缝合。

Why do you think I always have this glue gun stuck to my arm?

不然你觉得为什么随身带着涂胶枪呢？

You put on glue really fast.

你涂胶水真的很快。

Each brush is then gummed, a process that gives the brush head its final shape and allows it to bounce back.

然后对每支刷子进行涂胶，这一过程使刷头具有最终形状其弹回。

Yeah, my favorite was an AI overview suggesting users add glue to a pizza to stop the cheese from falling off.

是啊，最喜欢的例子是AI概述中建议用户在披萨上涂胶水以防止奶酪滑落。