To signal an emergency, use the rule of three; 3 shouts, 3 horn blasts, or 3 whistles.
农业的未来在于可持续发展,我们要为子孙后代留下绿水青山。
The role of technology in reducing emissions cannot be overstated.
数学中的合作可以带来任何单一思维都无法独自实现的发现。
I believe that if you keep your faith, you keep your trust, you keep the right attitude, if you're grateful, you'll see God open up new doors.