Back off 退后Back off！Don’t touch me！后退！别碰我！Step back 退后Please step back from the injured woman. Give her some air.不要靠近受伤的女士，请往后退一点，让她透透气。Keep back! 退后"Keep back!" he shouted, "Don&&t come any closer!”“退后！”他大叫着，“不要再靠近了！”Back and forth 反复地；来回地During the party, I went back and forth to the kitchen to get drinks for the guests.在聚会上，我来来回回从厨房给客人们拿饮料。Back in the day曾几何时Back in the day, I used to spend my summers exploring or playing with friends. Now I&&m in the office every day.曾几何时，我常常在夏天和朋友们玩或者去野外探索。现在我每天都只能在办公室。今日挑战选择并留下你的理解在留言处和大家分享You ___ very ill. I don’t think you __ after your health properly.A. are looking / lookedB. have looked / have lookedC. looked / have been lookingD. Look / are looking【翻阅上一期内容即可查阅正确答案】【下一期内容的正确答案解析】It doesn't have much to offer as a town - its shops are fairly poor and there's only one cinema.这个镇子没有什么特色——商店很破旧，而且只有一家电影院。
