желобcanalis [is, m];
созерцательspectator [oris, m];
хрящевидныйchondroides [is];
cooperari [or, atus sum];adjuvare [o, juvi, jutum];una agere [ago, egi, actum];operam sociare [1] cum, adjutricem operam praebзre [eo, ui, itum];