Motivation has been described as the key driving force that not only initiates L2 learning but also sustains the long and often \_\_\_\_ process of language acquisition.
Aoverarching
Barduous正確答案
Cimpetuous
Dmitigating
答案與詳解
arduous 意為「艱鉅的、費力的」,精確描繪語言習得充滿挑戰的特性,與 long 並列,完美解釋為何需要動機來維持。
