I was told I had the voice of a choirboy but the look of a headmistress.
Don't wait for permission to innovate - just start.
燃气发动机是所有热机中最完美的,因为它结合了蒸汽机和内燃机的优点。
Efficiency in aquaculture isn't just about profit—it's about doing more with less impact.
文学是人类的记忆,没有它,我们就会迷失。