vigilance ['vɪdʒɪləns]以下由轻松背单词网站提供
单词级别扩展级基本释义n.警戒;警惕英英释义more careful attention , especially in order to notice possible danger参考例句Never relax your vigilance while you live in peace.你们要居安思危。Constant vigilance is necessary in order to avoid accidents.为了避免意外事故,必须经常保持警惕。 推荐阅读 |