The manager signalled the start of the meeting.
To communicate a message or information, especially in a formal way.
His wave was a signal that he was ready to leave.
A gesture or action that conveys a message or information.
She signalled for help when she saw the car.
To indicate or show something, often using gestures or signals.
Với từ điển hình ảnh mạnh mẽ miễn phí và thẻ ghi nhớ.