To prevent an upper-hamstring injury, you need to approach straight-leg forward bends gradually and with awareness, taking any pain near the sitting bone seriously.

预防上腘绳肌肌腱损伤，你需要渐进式地练习伸直膝盖的前屈，并且对一切坐骨区域的疼痛保持高度警惕。

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Bring your left leg forward and return to standing.

左腿向前迈，回到站立姿势。

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Lunge: the basic attack in fencing where a fencer closes the distance between foes by moving the front leg forward while the back leg remains stationary and straightens out.

跨步刺：击剑的基本进攻方法，即剑手移动前脚而后脚保持原位，向靠近的对手进行直刺。

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The man is standing very straight, with his left leg slightly forward.

VOA: special.2010.08.04

His leg went forward and he was caught in the auger.

BBC: Pauls Malt fined after worker lost leg in silo accident

Goud was eventually caught behind by stand-in skipper Ridley Jacobs pushing forward against leg-spinner Mahendra Nagamootoo before the innings ended two runs later.

BBC: Cuffy on right track

McMillan, also returning to side after being dropped for Sri Lanka due to poor form, got out to a brilliant reflex catch by debutant Aakash Chopra at forward short-leg.

BBC: I got out to a ridiculous shot