英汉词典

1. 保持，维持（原状）
    If you preserve a situation or condition, you make sure that it remains as it is, and does not change or end.

preserve

    e.g. We will do everything to preserve peace.
           我们会尽全力维持和平。
    e.g. ...an effort to fit in more students while preserving standards.
           在保持原有教学水平的同时招收更多学生的努力