Pentanitrol
四硝基季戊四醇
🗣️ 情景例句
These are the models from the Japanese film maker.
这些是那位日本电影制片家那里的模型。
Along the northern coast there are many high cliffs.
沿着北部的海岸有许多高峡谷。
This is No. 1 Machine Shop. Keep together, please! said Uncle Wang.
“这就是第一机械车间。 请大家靠拢点！”王大叔说。