整个学期她的学业表现一直在下滑，所以期末考试不及格是意料之中的。
Her academic performance had been going downhill throughout the semester, so failing the final exam was expected.
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going英 /ˈɡəʊɪŋ/|美 /ˈɡoʊɪŋ/
downhill英 /ˌdaʊnˈhɪl/|美 /ˌdaʊnˈhɪl/
解释
going 是动词 go 的现在分词形式，表示"进行、进展"的状态。
downhill 由 down（向下）和 hill（山坡）组成，字面意思是"下坡"，引申为"走下坡路、变差"。
going downhill 这个短语用来形容情况逐渐恶化或表现持续下降。
Her academic performance had been going downhill throughout the semester, so failing the final exam was expected.
going 是动词 go 的现在分词形式，表示"进行、进展"的状态。 downhill 由 down（向下）和 hill（山坡）组成，字面意思是"下坡"，引申为"走下坡路、变差"。 going downhill 这个短语用来形容情况逐渐恶化或表现持续下降。