passive and intransitive. Of muscles, or the like: To have or assume a rigid attitude or state. Also spec. of an athlete poised to start a race. In…
| 单词 | θ27396 | 
| 释义 | the world > life > the body > structural parts > muscle > 			[verb (intransitive)]		 > muscular tension (3)		 set1844 passive and intransitive. Of muscles, or the like: To have or assume a rigid attitude or state. Also spec. of an athlete poised to start a race. In… cord1959 (Chiefly as participial adj.) To cause (a muscle, etc.) to stand out in cord-like patterns when hard or taut, esp. through effort or emotion. Also… flex1972 intransitive. To bend or be capable of bending. Of a muscle: to contract. Also, = to flex one's muscles. Originally U.S.  | 
	
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