像是這樣的例子：
“How to understand the meaning of a sentence?” – 這是錯誤寫法。參考：
https://www.usingenglish.com/forum/threads/replace-the-time-now-spend-spent-on-mindless-device-use.298069/post-1879294
# 3 … we never start a “How” question with “How to”.
正確寫法改成 “How can I/should I/do we understand …..?”
