假设你在学习泰语颜色词汇时遇到了一些困难。你可以尝试以下方法： 情景模拟 ：假设你在泰国市场购物，需要向摊主描述你想要的水果颜色。例如，你可以说：“ข้าวโพดสีเขียว (kʰâo pʰôd sī kʰiow)”（绿色的玉米）。

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.