We spent many years studying the formation of rocks , experiencing many sufferings and even death. But our hard work ____________in the end , and we made it.
China understands the situation and needs of underdeveloped countries on the issue of climate change and urges developed countries to support them ____________technology and finance.
All countries need ____________ , timely and reliable climate information as well as high quality climate services , as they will benefit the whole humankind.