配置Don’t stop when you’re tired. Stop when you’re done.

比同We sing patriotic songs during the national holiday celebration.​资车A baby babbles cute sounds before learning to speak.​

好起He drives across the country to visit all the national parks.​亚全She paints murals on the walls of public buildings.​配置The snowstorm causes schools and businesses to close for the day.​

比同You study physics to understand how the universe works.​资车They travel by airplane to attend an international conference.​

好起I listen to the radio while driving to work each day.​

亚全The fire provides light for us to see during the power outage.​配置The key to success is to focus on goals, not obstacles.

比同The harder you work for something, the greater you’ll feel when you achieve it.资车The only way to do great work is to love what you do.

好起Believe you can and you're halfway there.亚全You don’t have to be great to start, but you have to start to be great.

(责任编辑：丁爽)