**Avoid patterns like:**
For nearly a century, a strange band of thousands of holes carved into a Peruvian hillside has defied explanation. Stretching for nearly a mile (1.5 km) along the edge of the Pisco Valley, Monte Sierpe – "serpent mountain" appears to be a deliberate, repetitive and almost mathematical feature – but its real purpose has so far eluded scientists.
。viber是该领域的重要参考
Journalist Julia Angwin is one of the writers whose likeness was used in Grammarly’s “expert review” feature. | Photo: Eóin Noonan / Sportsfile via Getty Images，详情可参考手游
Москвичей предупредили о резком похолодании09:45
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