He went closer and saw that the old man had only one leg bent under him, the other had been cut off above the knee.
他向这位老人近旁走去，看见他只弯着一条腿，另一条腿从膝头以上完全没有了。
Straight leg Raises - Lie on your back with one leg straight and one knee bent.
伸直抬腿——平躺，一条腿伸直，另一条腿膝盖弯曲。
Your guy lies on his back, one leg outstretched and the other bent, knee pointing upward.
让你的男伴躺下，一条腿伸向一旁，另一条腿弯曲，膝盖朝上。
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