How to say serious challenge in different languages

You can say serious challenge as sérieux défi in the following countries: Benin; Burkina Faso; Burundi; Central African Republic; Chad; Democratic Republic of the Congo; Djibouti; France; French Guiana; French Polynesia; French Southern Territories; Gabon; Guadeloupe; Guinea; Ivory Coast; Madagascar; Mali; Martinique; Mayotte; Monaco; Niger; Republic of the Congo; Reunion; Saint Barthelemy; Saint Martin; Saint Pierre and Miquelon; Senegal; Togo;

You can say serious challenge as desafío serio in the following countries: Argentina; Bolivia; Chile; Colombia; Costa Rica; Cuba; Dominican Republic; Ecuador; El Salvador; Equatorial Guinea; Guatemala; Honduras; Mexico; Nicaragua; Panama; Paraguay; Peru; Spain; Uruguay; Venezuela;

You can say serious challenge as ernstige uitdaging in the following countries: Aruba; Belgium; Curacao; Netherlands; Netherlands Antilles; Sint Maarten; Suriname;

You can say serious challenge as desafio sério in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say serious challenge as 严重挑战 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say serious challenge as ernsthafte herausforderung in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say serious challenge as vakava haaste in the following countries: Finland; Northern Mariana Islands;

You can say serious challenge as σοβαρή πρόκληση in the following countries: Cyprus; Greece;

You can say serious challenge as sfida serio in the following countries: Italy; San Marino;

You can say serious challenge as seriøs utfordring in the following countries: Norway; Svalbard and Jan Mayen;

You can say serious challenge as allvarlig utmaning in the following countries: Aland Islands; Sweden;

You can say serious challenge as сур'ёзная праблема in the following countries: Belarus;

You can say serious challenge as сериозно предизвикателство in the following countries: Bulgaria;

You can say serious challenge as vážnou výzvu in the following countries: Czechia;

You can say serious challenge as alvorlig udfordring in the following countries: Denmark;

You can say serious challenge as tõsine väljakutse in the following countries: Estonia;

You can say serious challenge as komoly kihívást in the following countries: Hungary;

You can say serious challenge as nopietna problēma in the following countries: Latvia;

You can say serious challenge as rimtas iššūkis in the following countries: Lithuania;

You can say serious challenge as poważne wyzwanie in the following countries: Poland;

You can say serious challenge as серьезный вызов in the following countries: Russia;

You can say serious challenge as vážnou výzvou in the following countries: Slovakia;

You can say serious challenge as ciddi meydan okuma in the following countries: Turkey;

You can say serious challenge as серйозна проблема in the following countries: Ukraine;