to spread out over an area
在区域内扩展 (zai quyu nei kuozhan)
"Volunteers will fan out across the park."
"志愿者将在公园内分布开来。" (Zhiyuanzhe jiang zai gongyuan nei fenbu kailai)
endless opportunities or options
to sleep in order to recover from tiredness or sickness
to make a sincere promise
a person who has foresight and imagination
to have a big, broad smile showing happiness
a friend you have known for a long time