二、在文中找出下列五个英文问题对应的答案,并请将问题和答案都翻译成汉语。 1. What events must the operator follow(遵守)? 2. Why must the operator wear safety glasses with side-shields(侧边有防护的安全眼镜)? 3. Why should the operator wear short sleeve (短袖)shirt? 4. Why should the operator wear lathe work shoes(劳保鞋)? 5. Why should the operator keep the machine clear of oil or grease?