VOA慢速英语:人类让海洋变得太吵了

marine – adj. of or relating to the sea or the plants and animals that live in the sea

introduce – v. to put in

communicate – v. to give information about (something) to someone by speaking, writing, moving your hands, etc.

species – n. biology : a group of animals or plants that are similar and can produce young animals or plants : a group of related animals or plants that is smaller than a genus

volume – n. the degree of loudness or the intensity of a sound

frequency – n. the number of waves of sound or energy that pass by a point every second

stress – n. a state of mental tension and worry caused by problems in your life, work, etc.

essential – adj. extremely important or necessary

monitor – v. to watch, keep track of, or check usually for a special purpose