Words and expressions
1. Era 时期，时代
E.g. Modern era
In the era of...
2. Vessel 轮船；容器；血管
3. Rudder 舵
4. Roll 颠簸，摇摆
Roll one's eyes 翻白眼
Roll a dice 掷骰子
Roll up sb's sleeves 卷袖子（小屁孩中的表达）
5. Steer 驾驶，控制方向盘；操纵
Keep/stay/steer clear of sb/sth避开，回避(avoid)
6.Take the lead 带头
E.g. He used to take the lead in test scores.
7. One of a kind 独一无二
8. Plank 大块木板；平板支撑
