Polypropylene is a strong, flexible artificial material that is used to make things such as rope, carpet, and pipes.
N-UNCOUNT
Polypropylene is a strong, flexible artificial material that is used to make things such as rope, carpet, and pipes.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012