Placoderms
(placoderm 的复数) n.[古生]盾皮鱼
🗣️ 情景例句
Nothing.
没有什么。
The President is going to address the nation on television this evening.
总统今晚将向全国发表电视讲话。
of a change of atmosphere, of a diversion of effort, is essential.
改变一下气氛，转移一下注意力，这是不可缺少的。