Tonic

(noun.) a medicine that strengthens and invigorates.

(noun.) (music) the first note of a diatonic scale.

(noun.) lime- or lemon-flavored carbonated water containing quinine.

(adj.) used of syllables; 'a tonic syllables carries the main stress in a word' .

(adj.) relating to or being the keynote of a major or minor scale; 'tonic harmony' .

(adj.) employing variations in pitch to distinguish meanings of otherwise similar words; 'Chinese is a tonal language' .

(adj.) of or relating to or producing normal tone or tonus in muscles or tissue; 'a tonic reflex'; 'tonic muscle contraction' .

编辑:丽诺尔

• The crisp, fresh mountain air outside the cave acted as an immediate tonic and I felt new life and new courage coursing through me. 埃德加·赖斯·巴勒斯. 火星公主.
• No; it should be bitter: bitterness is strength--it is a tonic. 夏洛蒂·勃朗特. 雪莉.
• The martyr, when faced even by a death of bodily anguish and horror, finds in the very terror of his doom a strong stimulant and tonic. 哈丽叶特·比切·斯托. 汤姆叔叔的小屋.
• Half-truths and illusions, if you like, but tonic. 沃尔特·李普曼. 政治序论.
• For the academic intelligence abstract and abstruse mathematics are tonic and an end in themselves. 李贝. 西洋科学史.
• There are two kinds of spasms, clonic and tonic. 佚名. 神奇的知识之书.

校对:谢尔比