双语|国际民航组织发新规 建议限制乘客使用机上厕所
Air passengers should have restricted access to toilets on flights as part of wide-ranging coronavirus safety recomm ...
成语"悬崖勒马"用英语怎么说？
“悬崖勒马”，汉语成语，意思是在高高的山崖边上勒住马（draw [rein] in one's horse at the edge of a cliff）。比喻到了危 ...
