以下是signal相關的台詞：
* “Signal is a communication tool that allows you to send messages to other users without using their phone numbers.”（信號是一個通訊工具，它允許您向其他用戶傳送訊息而無需使用他們的電話號碼。）
* “Signal is a safe and private communication tool that ensures that your messages are encrypted and secure.”（信號是一款安全和私人通訊工具，它確保您的信息被加密和安全。）
* “The signal app allows you to send messages to anyone with an internet connection, even if they don’t have a phone number.”（信號套用允許您向任何有網際網路連線的人傳送信息，即使他們沒有電話號碼。）
* “Signal is a free and open-source app that allows you to communicate with friends and family without worrying about privacy or security.”（信號是一款免費和開源的應用程式，允許您與朋友和家人進行交流而不必擔心隱私或安全問題。）
希望這些台詞能夠幫助您。