Metacommand
[計] 元命令
??? 情景例句
(a foreigner) Is that a special day?
（一個外國人）是一個特殊的日子嗎？
Learn to creep before you leap.
循序漸進。
But as the paper moved from side to side under the pen point,
由于紙在筆尖下來回運動，