1. 竞争;角逐
    Competition is a situation in which two or more people or groups are trying to get something which not everyone can have.

    e.g. There's been some fierce competition for the title...
           夺冠之争一直都相当激烈。
    e.g. It was in these studios that young painters found the support and stimulating competition of peers.
           就是在这些画室里，年轻的画家们得到了同龄人的支持，也感受到了激励大家向前的竞争。

2. 竞争对手
    The competition is the person or people you are competing with.

competition在线翻译

    e.g. I have to change my approach, the competition is too good now.
           我得改变方法，现在的竞争对手太强。

3. (商业)竞争
    Competition is an activity involving two or more firms, in which each firm tries to get people to buy its own goods in preference to the other firms' goods.

    e.g. The deal would have reduced competition in the commuter-aircraft market...
           这项协议原本会减少通勤航班市场的竞争。
    e.g. The farmers have been seeking higher prices as better protection from foreign competition...
           农场主们一直在寻找更高的价格，以更好地保护自己不受国外竞争对手的影响。

4. 竞争产品(或商品)
    The competition is the goods that a rival organization is selling.

competition在线翻译

    e.g. The American aerospace industry has been challenged by some stiff competition.
           美国航空和航天工业已经受到某种强劲的竞争产品的挑战。

5. 比赛；竞赛
    A competition is an event in which many people take part in order to find out who is best at a particular activity.

    e.g. ...a surfing competition...
           冲浪比赛
    e.g. The council has organised a series of events and competitions for school children in the area...
           委员会为本地区的中小学生组织了一系列的活动和比赛。