The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
To say 'I love you' one must first be able to say the 'I'.
材料设计的微小改变可以大幅减少环境影响。
The Belt and Road construction should adhere to the principle of extensive consultation, joint contribution and shared benefits.
过去不是负担，而是基础。
A culture of experimentation and learning is essential for growth.