Nanook
n. （加拿大）北极熊
🗣️ 情景例句
Safety first.
安全第一。
How is the weather today?
今天天气怎么样？
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量（整个宇宙是否如此，目前尚有争论）。