Welcome Administrative Topics课程事项 Lunch Facilities午餐 Breaks and restrooms课间休息 Phones and Messages电话 Smoking禁止吸烟 FOURTHSHIFTWelcome Administrative Topics 课程事项 • Lunch Facilities 午餐 • Breaks and Restrooms 课间休息 • Phones and Messages 电话 • Smoking 禁止吸烟