Areopyknometer
[机] 比重瓶比重计
🗣️ 情景例句
Food is necessary to maintain life.
食物是维持生命所必须的。
Because such constructive employment practices will greatly promote a better understanding of both American and Chinese cultures.
因为这个具有建设性的雇佣体系将会有力地推进对中美双方文化的更好了解。
If then we are so certain that other intelligent life exists in the universe,
既然我们如此坚信宇宙中存在着其他有智力的生命，