【英语活动】__ [第20天]一个月帮你攻克考研词汇--截止日期6月30日

1 在数目差不多有700多的竹子种类中，有一些长成后也不足一英尺高，而还有一些在24小时之内就能长高三英尺。
2 在一次海上航行开始之前，谨慎的航海家们会研究海图，了解航海方向，还要记住灯塔的位置，以保证当遇到任何困境时他们都有所准备。
3 在所有的重要经济作物当中，棕榈树是被研究最少的。

1 Among almost seven hundred species of bamboo, some are fully grown at less than foot high, some others can grow three feet in twenty-four hours.
2 Before starting on a sea voyage, prudent navigators learn the sea charts, study the sailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter.
3 Of all the economically important plants, palms have been the least studied.