But he sees the contagious effect of yawning as a key clue.
但他认为打哈欠的传染效应是一个关键线索。
单词 | contagious effect |
例句 |
原声例句
雅思阅读真题 But he sees the contagious effect of yawning as a key clue. 但他认为打哈欠的传染效应是一个关键线索。 |
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