英汉词典

1. 表达;表述
    When you express an idea or feeling, or express yourself, you show what you think or feel.

    e.g. He expressed grave concern at American attitudes...
           他对美国的态度表示严重关切。
    e.g. Sumner would greet us with frowns and grimaces, doing his best to express wordless disapproval...
           萨姆纳会冲我们皱眉，做苦脸，竭力表示他无言的反对。

2. （观点、感情等）体现，不言自明
    If an idea or feeling expresses itself in some way, it can be clearly seen in someone's actions or in its effects on a situation.

    e.g. The anxiety of the separation often expresses itself as anger towards the child for getting lost.
           离散带来的焦虑常常体现为对走失的孩子发火。

3. （用符号等）表示，表达
    In mathematics, if you express a quantity or mathematical problem in a particular way, you write it using particular symbols, figures, or equations.

    e.g. We can express that equation like that...
           我们可以这样表示那个等式。
    e.g. It is expressed as a percentage.
           它是以百分比的形式表示的。

4. （命令）明白表示的，明确的
    An express command or order is one that is clearly and deliberately stated.

    e.g. The ship was sunk on express orders from the Prime Minister.
           遵照首相的明确指令，那艘船被击沉了。