台湾籍旅美老师今天交给我们的句子是：
That allows them to track exactly how much customers are eating and how much is getting thrown away, and allows them to adjust menus based on what's popular, allowing them to plan ahead and put out what people are going to want, and in the right quantities.
这让他们能够掌握消费者究竟吃进了多少又剩下了多少，还能够根据潮流实时调整菜单，并让他们能够事先规划、推出顾客会想吃的餐点，而且份量刚刚好。
学习重点：
1.allow 使有可能；允许；准许；容许
allow (v.) 使有可能；允许；准许；容许
2.track 跟踪；追踪；记录…的进展
track (v.) 跟踪；追踪；记录…的进展
track (n.) 赛道；跑道、足迹；车辙 、一首歌；一支乐曲
3.adjust 调整；调节、整理（衣着）
adjust (v.) 调整；调节、整理（衣着）
4.quantity 量；数量；分量
quantity (n.) 量；数量；分量
quality (n.) 质量；品级；品质
