How to say one by one in different languages

You can say one by one as un à un 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 one by one as uno a uno 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 one by one as um por um, um a um in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say one by one as 一个一个 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say one by one as nacheinander, einzeln, je ein in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say one by one as uno per volta in the following countries: Italy; San Marino;

You can say one by one as па адным in the following countries: Belarus;

You can say one by one as po jednom, jednotlivě in the following countries: Czechia;

You can say one by one as enkeltvist in the following countries: Denmark;

You can say one by one as egyesével in the following countries: Hungary;

You can say one by one as pojedynczo in the following countries: Poland;

You can say one by one as поодиночке, по одному in the following countries: Russia;

You can say one by one as teker teker, birer in the following countries: Turkey;

You can say one by one as поодинці, по одному in the following countries: Ukraine;