Dema
abbr. 美国数据录入管理协会（Data Entry Management Association）；柴油发动机制造商协会（Diesel Engine Manufacture's Association）；世界潜水器材展；马来西亚青年与学生民主运动
🗣️ 情景例句
Smokers pollute the air.
吸烟污染空气。
The phone is ringing.
来电话了。
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。