Your audience sees your face before they hear what you are going to say. Thus, you have an opportunity to set the emotional tone for your message before you start speaking.
你的听众在听到你说话之前看到你的脸，所以，你就有机会在讲话前给你的演讲确定一种有感情的语调。
3
Many were not made aware of the opportunity to set up on their own at school, with 81 per cent admitting that careers advisers had not provided entrepreneurship as an employment option.