自然界: nature, the natural world...
电台: transmitter-receiver, broadcasting station, radio station...
授权: to authorize...
常年: all year round, for years on end, average year...
粘: to glue, to paste, to adhere, to stick to...
西边: west, west side, western part, to the west of...
为了: in order to, for the purpose of, so as to...
危急: critical, desperate (situation)...
身边: at one's side, on hand...
静: still, calm, quiet, not moving...
