【英语时差8,16】自制电话（上）

Kids these days have so many electronic toys it’s possible to grow up without ever discovering the best toy in the world — the tin can telephone. Moms and Dads, take note! Lots of science-types agree that kids will remember one toy you build with them years after they have forgotten the latest plastic gizmo. So, how do you make a tin can telephone? Take two metal cans and cut off one end on each. Be sure not to leave any sharp edges! If there are some, you can cover the rim¹ with electrical tape. Make a small hole in the bottom of each can. Now take a long piece of string. Thread the string through the hole in each can, and tie a knot in each end so it can’t pull back through the hole. Now get two kids to hold the cans so that the string is taut². As one speaks into a can, the other listens in the other can. You’ll be surprised at how well this works.

1 rim   

n.(圆物的)边，轮缘；边界

参考例句：

• The water was even with the rim of the basin.盆里的水与盆边平齐了。
• She looked at him over the rim of her glass.她的目光越过玻璃杯的边沿看着他。

2 taut   

adj.拉紧的，绷紧的，紧张的

参考例句：

• The bowstring is stretched taut.弓弦绷得很紧。
• Scarlett's taut nerves almost cracked as a sudden noise sounded in the underbrush near them. 思嘉紧张的神经几乎一下绷裂了，因为她听见附近灌木丛中突然冒出的一个声音。