慢速英语:Facebook Reactions Much More Than a Like

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1. express vt.表达; 表示; 显而易见
例句：The writer wishes to express his appreciation for the aid received.
作者对于受到的帮助谨致谢忱。

2. appear vi.发表; 出现，显现
例句：They appear to be very sensitive to mildly corrosive environments.
它们似乎对轻度的腐蚀环境非常敏感。

3. explain vt.讲解，解释
例句：He made up a story to explain why he was absent.
他编造了一个故事为他的缺席辩解。

4. confusion n.混乱; 混淆; 困惑
例句：Her blush witnessed her confusion.
她的脸红证明她惶惑不安。