※ 引述《iWatch3 (挨袜取)》之铭言：
: 1. I saw that the tree was swaying in the breeze.
: 2. I saw the tree swaying in the breeze.
3. I heard that the tree was swaying in the breeze.
4. I heard the tree swaying in the breeze.
3和4的语意完全不同。
1和2其实语意也不完全一样。
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