您好!麻烦您帮我分析这话 Astronomers can calculate when there will be eclipses of the sun and moon
问题描述：
您好!麻烦您帮我分析这话 Astronomers can calculate when there will be eclipses of the sun and moon
答
Astronomers can calculate when there will be eclipses of the sun and moon
主 谓 when 从句做宾语
天文学家可以计算出何时会有日食和月食