约 160,000 个结果
Obstacle Definition & Meaning - Merriam-Webster
Meaning of obstacle in English - Cambridge Dictionary
OBSTACLE Definition & Meaning | Dictionary.com
Obstacle - Definition, Meaning & Synonyms | Vocabulary.com
OBSTACLE | definition in the Cambridge English Dictionary
OBSTACLE definition and meaning | Collins English Dictionary
obstacle noun - Definition, pictures, pronunciation and usage …
obstacle | meaning of obstacle in Longman Dictionary of …
Obstacle Definition & Meaning | YourDictionary
Meaning of obstacle – Learner’s Dictionary - Cambridge Dictionary
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