1英英释义：to continue to be in the same state or condition
例句：Mooncakes remain an essential part of Mid-autumn Festival.
2. 体会这个词 （进阶篇）
remain”几乎在每期《经济学人》中都会出现。它可以作不及物动词，也可以作系动词，今天的“每日一词”侧重后者。
顾名思义，系动词连接主语和宾语，因此“remain”和“be”动词几乎可以同义替换（上面例句中的 remain 就可以换成 is）。不同点在于（正如英英释义中说的），“remain”强调状态的稳定性或延续性。
“remain” 后面可以接形容词，常接 “un”开头的形容词，比如 unclear, unchanged, unanswered, unproven。来看两个例子：
“remain“后也可以接名词，比如常见的有 a secret, an enigma：
The fate of the injured remains unclear.
“remain”后面接“unclear”，意思是伤者的命运未卜。很多关于事故、灾难的新闻报道中会出现这句话。
If it were Mr Ma of Alibaba, its shares would fall. If it were Mr Ma of Tencent, they would remain unchanged. And if it were Mr Li of Baidu, they would rise.
Whether the actor killed himself or was murdered remains a secret.
“remain”后面接“a secret”，强调的是这个演员的死因一直是个谜。这里的名词 “a secret” 也可以换成 un开头的形容词，因此这句话还可以这么写：
It remains unknown whether the actor killed himself or was murdered.
3. 从认识到会用（作业）
1）翻译下面的句子：
中秋节一直是中国人最喜欢庆祝的节日之一。
Mid-Autumn Festival remains Chinese one of the most favorite holidays.
（参考翻译：Mid-autumn Festival remains one of the most celebrated/observed national holidays in China.）
2）结合自己的生活、学习、工作、兴趣等，先想象在什么语境下会用到这个表达，然后再进行造句。
场景：stars
造句：It remains unknown whether the actor and actress are officially in a relationship.
