今天，她注意到，敲击燧石时，桑德·加特突然向前弯转他的右手腕。
Today, she notices that Sandgathe snaps his right wrist forward when he strikes the flint.
例如，在桑德·赫斯特受训的第六周，军校学员受命围绕威尔士山进行36小时的行军，以强调在完成任务过程中团队合作的至关重要性。
In their sixth week at Sandhurst, for example, military cadets are sent on a 36-hour March round the Welsh mountains to emphasise the crucial importance of teamwork in completing command tasks.
威廉姆斯通过拍摄数百小时的燧石敲击，对桑德加特的动作进行电脑分析，把他的直觉翻译成科学。
Williams translates Sandgathe's intuition into science by filming hundreds of hours of knapping and analyzing the knapper's movements on a computer.
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