The fire engine can carry extra tanks or refilling equipment, and a firefighter spends a limited time in the burning building.
消防车可以装载额外的气瓶或者充气设备,而消防员在着火建筑内停留时间也有限。
It's the first time I, a fair-skinned, freckly type, have sailed in the sun without burning.
这是第一次,我这样一个皮肤白皙、有雀斑的人,顶着太阳航海而没有晒伤。
When Stevenson followed the carbon-14 trail back in time, he found carbon-14 levels change with the intensity of solar burning.
当史蒂文森依据碳-14的痕迹追溯过去时,他发现碳-14的含量随着太阳燃烧的强度而变化。
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