An upside down triangle on a road sign signifies that I have to yield to other cars.

倒三角形的路标表示必须减速让行。

The white belt signifies that he's an absolute beginner.

白腰带表示他完全是个新手。

This mark signifies that the products conform to an approved standard.

这个标志说明这些产品符合指定的标准。

Resting chopsticks on the side of one's bowl or on a chopstick stand signifies one is merely taking a break from eating.

将筷子放在碗的侧面或筷子架上表示他只是休息一下。

It signifies we should go now.

这就意味着我们该走了。

signifies a group.

表示一个分组。