apron [ˈeɪprən] noun 1. [clothing] grembiule m to be tied to sb's apron strings (inf) essere attaccato ( f attaccata) alle sottane di qn 2. AERON area f di stazionamento
Complétez la séquence avec la proposition qui convient. “Smoking is forbidden” means you … smoke. need to needn't mustn't