signed 是 sign 的过去式、过去分词

sign

KK [saɪn] /saɪn/

名词

1
标志、招牌、告示牌
A sign at the entrance warned visitors about the wet floor.
入口的告示牌提醒访客地板湿滑。
2
迹象、征兆、预兆
Rising sales are a good sign for the whole industry.
销售成长对整个产业来说是好迹象。
3
符号、记号
Remember to put a minus sign in front of the number.
记得在这个数字前面加上负号。
4
手势、手语动作
She made a sign for us to keep quiet.
她打了个手势要我们保持安静。
5
星座
What sign were you born under?
你是什么星座的？
6
病征、症候医学
The doctor looked for signs of infection in the wound.
医师检查伤口有没有感染的病征。

1
签名、签署
Please sign at the bottom of the second page.
请在第二页的下方签名。
2
签约、签下
The team signed three new players before the season.
球队在球季开始前签下三名新球员。
3
打手势、用手语表达
He signed to the waiter that we wanted the bill.
他向服务生打手势表示我们要结帐。