动 sign，autograph，make brief comments on a document，tack；名 bamboo slips used for divination or drawing lots，label，sticker，a slender pointed piece of ba

[例句] 侍者把他们点的餐端了过来，格雷厄姆签了单。 The waiter returned with their order and Graham signed the bill.

[例句] 我觉得签这个协议真傻。 I feel such a mug for signing the agreement.