When the video was over, half of each group was given a glass of lemonade with sugar in it and half was given a glass of lemonade with sugar substitute.
录像结束时，每一组半数的学生各获得一杯含糖的柠檬水，另一半学生各获得一杯无糖柠檬水。
2
Before the extensive use of glass, the oyster-shell window seemed to be the best substitute.
在玻璃还没普及的时候，这蚝壳窗应该是最好的替代品了。
3
Wollastonite with high aspect ratios is a good substitute for asbestos and glass short-fiber, which can widely be used in rubber, plastic and paint as filler with reinforcement and increment effects.