VOA慢速英语:为了你的植物 请少用点盐

crystal – n. a small piece of a substance that has many sides and is formed when the substance turns into a solid

ion – n. an atom or group of atoms that has a positive or negative electric charge from losing or gaining one or more electrons

fertilizer – n. a substance or a special chemical that is added to soil to help the growth of plants

alternative – n. offering or expressing a choice

vinegar – n. a sour liquid that is used to flavor or preserve foods or to clean things

holistic – adj. relating to or concerned with complete systems rather than with individual parts

park – v. leaving a car at a specific place