如果您擁有雙 SIM 卡手機，則或需選擇要用來發送訊息的 SIM 卡。
You can send text messages that are longer than the character limit for a single message. Longer messages are sent as two or more messages. Your service provider may charge accordingly. Characters with accents, other marks, or some language options, take more space, and limit the number of characters that can be sent in a single message.