| 词组 | muscle |
| 释义 | 指不同种类的 “肌肉”时，为可数名词; 泛指 “肌肉”时，为不可数名词: Three different kinds ofmuscles are found in vertebrate animals. ( 可数) Some people with a low body weight have little muscle and rel- atively high percentage of fat. ( 不可数) |
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