n. a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
n. a public display of a message
n. (medicine) any objective evidence of the presence of a disorder or disease
n. a gesture that is part of a sign language
n. 符号, 招牌, 征兆, 正负号, 手势
vt. 签名, 打手势表达
vi. 签名
[计] 正负号; 符号; 符号字符
1. Please sign your name at the bottom of the form.
请在表格底部签名。
2. She gave me a sign that she was ready to leave.
她给了我一个信号，表示她准备离开了。
3. The sign on the door says "Open" today.
门上的标志写着“今天开放”。