upper atmosphere的用法和樣例：
例句
- "A sweet temper" is a figurative expression, but "sweet coffee" is not.
"甜蜜的性情"是個比喻的說法，而"甜咖啡"則不是。 - Particle concentrations in the upper atmosphere drop regularly as the altitude rises.
在高層大氣中粒子濃度隨高度的增加而有規律地下降。 - As the final days ticked by, a dust storm on the planet erupted, reducing the density of the upper atmosphere.
在最后幾天的倒數計時中，火星上卻刮起了一場沙塵暴，導致高層大氣的密度降低。
