1. 头晕目眩的;眩晕的
    If you feel dizzy, you feel that you are losing your balance and are about to fall.

    e.g. Her head still hurt, and she felt slightly dizzy and disoriented...
           她的头还痛，并且觉得有些晕头转向。
    e.g. He began to get dizzy spells.
           他开始一阵阵地头晕。

2. (指女子)粗心的，没记性的，大大咧咧的
    You can use dizzy to describe a woman who is careless and forgets things, but is easy to like.

    e.g. She is famed for playing dizzy blondes.
           她以扮演金发傻妞而闻名。
    e.g. ...a charmingly dizzy great-grandmother.
           一位迷人的大大咧咧的曾祖母

3. 使眩晕;使困惑;使晕头转向
    If something dizzies you, it causes you to feel unsteady or confused.

    e.g. The sudden height dizzied her and she clung tightly.
           突然上升的高度让她晕头转向，她抓得紧紧的。

4. 重要的职位;显赫的地位
    If you say that someone has reached the dizzy heights of something, you are emphasizing that they have reached a very high level by achieving it.

    e.g. I escalated to the dizzy heights of director's secretary.
           我升到了总经理秘书这一显赫高位。