A "serious accident" occurred when the Democratic People's Republic of Korea (DPRK) launched a newly-built 5,000-tonnage ...

这篇论文周一发表于《美国国家科学院学报》 (Proceedings of the National Academy of Sciences)，研究人员在其中提出，这种行为也许能帮助大熊猫忍受寒冷，马粪中的某种成分可能导致某种体温调节细胞短路，而这种细胞原本会让大熊猫对寒冷敏感。

An investigation group of the Democratic People's Republic of Korea (DPRK) got down to a "full-scale investigation" into the ...

形容词 “serious” 常用来表示某人或事是 “严肃的”，问题或事故是 “严重的”。短语 “serious about” 怎么用？看视频，跟主持人 Sam 一起学习单词 “serious” 的六个常见用法。

PYONGYANG, May 22 (Xinhua) -- A "serious accident" occurred when the Democratic People's Republic of Korea (DPRK) launched a newly-built 5,000-tonnage destroyer on Wednesday, the official Korean ...