uphill [ˌʌpˈhɪl]

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adj.上坡的；adv.上山地；n.登高

leading to a higher place on a slope

She was hot and breathless from the exertion of cycling uphill.她骑车上山累得全身发热，喘不过气来。
You have to gear down when you drive uphill.上坡行驶时必须换慢挡。