Во многих фирмах можно поменять раз

Во многих фирмах можно поменять размер,но это занимает много времени
может не подойти размер,в некоторых фирмах предусмотрен обмен на нужный размер,но обмен вещи занимает много времени. Качество вещей очень сложно оценить

Результаты (английский) 1:

In many firms, you can change the size, but it takes a lot of time may not be suitable in size, some firms provided for Exchange for correct size, but the exchange of things takes time. Quality of the things are very difficult to assess

Результаты (английский) 2:

In many firms, you can change the size, but it takes a long time
may not fit the size, in some firms provided exchange for the right size, but the exchange of things takes time. The quality of things are very difficult to assess

Результаты (английский) 3:

In many firms you can change the size, but this takes a lot of time
may not be suitable size,in some firms there is a exchange for the desired size,but exchange things took a lot of time.The quality things are very difficult to assess