本文作者： Shannon Hayes

VIP教师会员和本期电子版订户登录后下载

词数 425 建议阅读时间 7分钟 测试见7版It is my 11-year-old daughter Hannah’s first visit to Washington. While considering where to visit first, she sees the greenhouse. “Here,” she says, as she drags me into the tropical paradise (热带天堂).