1. 限制，限定（大小、規(guī)模等）
    If you restrict something, you put a limit on it in order to reduce it or prevent it becoming too great.

restrict的解釋

    e.g. There is talk of raising the admission requirements to restrict the number of students on campus...
           有傳聞稱將通過提高錄取條件來限制在校學生的數(shù)目。
    e.g. The French, I believe, restrict Japanese imports to a maximum of 3 per cent of their market.
           我認為，法國將把從日本的最高進口量限制在其市場總量的3％。

2. 約束，限制(活動或行為)
    To restrict the movement or actions of someone or something means to prevent them from moving or acting freely.

restrict是什么意思

    e.g. Villagers say the fence would restrict public access to the hills...
           村民們說架籬笆能限制公眾進山。
    e.g. The government imprisoned dissidents, forbade travel, and restricted the press...
           政府囚禁了持不同政見者，禁止出游，并且限制了新聞自由。

3. 限制，限定（人或其行為）
    If you restrict someone or their activities to one thing, they can only do, have, or deal with that thing. If you restrict them to one place, they cannot go anywhere else.

    e.g. He was, however, allowed to stay on at the temple as long as he restricted himself to his studies...
           然而，只要他專心學習，他就可以繼續(xù)留在寺廟里。
    e.g. The patient isn't restricted to a meagre diet...
           并沒有限制這位病人少吃東西。

4. 將…限制在（某地）；將…限定為（某群體）
    If you restrict something to a particular group, only that group can do it or have it. If you restrict something to a particular place, it is allowed only in that place.

    e.g. The hospital may restrict bookings to people living locally...
           這家醫(yī)院可能會限定只有當?shù)鼐用癫拍茴A(yù)約。
    e.g. Camping is restricted to five designated campgrounds.
           露營被限制在指定的5個野營地。