重要

prevent

/prɪˈvent/📚 1087 227 4四级六级考研托福中考高考
To prevent something means to ensure that it does not happen. 预防

verb [vt. 及物动词]阻止,阻碍;防止,预防;设置障碍

To prevent someone from doing something means to make it impossible for them to do it.
阻止

prevent 出现在下面的课文中(提供视频、音频及笔记等可系统性学习)
Lesson 44 Speed and comfort
Lesson 54 Instinct or cleverness?
Lesson 56 Our neighbour,the river
pre(预先)+vent(来)→提前来挡住别人→阻止
单词造句: