试题题干
Translate the following sentence into Chinese.
The continuous change in the level of sand in an hourglass as time passes makes it an analog device.
参考答案
试题解析
考点：continuous change不断变化的；the level of sand沙线；hourglass沙漏； analog device模拟装置。
句子结构：主句为The continuous change in the level of sand in an hourglass makes it an analog device.，as time passes为时间状语。