Just like when you're hovering in front of a grocery store shelf, the students looked back and forth several times, usually glancing first at the snack on the left.
就像你是在小卖部的货架前徘徊，这些学生来回看了好几次，通常都会先瞥一眼左边的那个。
2
Generally, milk bottles at the front of the shelf in the supermarket have an expiry date of only a few days.
通常，超市中架子前的瓶装奶仅有几天的有效限期。
3
Its clash is with Canada, and concerns St Pierre & Miquelon, a group of tiny islands little more than 25km from Newfoundland that front onto a shelf blessed with oil deposits.