1. Our rowboat''s course was erratic after we lost the oars.
    丢了桨之后我们划艇的航向飘忽不定。

2. She is a very erratic tennis player.
    她是个极其难以捉摸的网球手。

1.

1. 游走的,移动的：erisophake 晶状体吸盘 | erratic 游走的,移动的 | error 误差,错误

2. 不稳定的：equitable#公平的;公正的 | erratic#不稳定的 | erroneous#错误的

3. 漂石：erosion cycle侵蚀循环 | erratic漂石 | eruption爆发

4. 奇怪的：odd 怪诞的,奇数的 | erratic 奇怪的 | weird 怪异的,不可思议的

1. 不稳定的;难以预测的；不规则的
    Something that is erratic does not follow a regular pattern, but happens at unexpected times or moves along in an irregular way.

    e.g. Argentina''s erratic inflation rate threatens to upset the plans.
           阿根廷动荡不定的通货膨胀率可能会破坏那些计划。
    e.g. ...the family''s erratic affairs.
           那个家庭发生的稀奇古怪的事情