Topic Lane / Current Aboutness
What are we talking about now?
含义
The already established or chosen frame that the sentence comments on.
如何识别
Ask what the sentence is about before asking what new information it adds.
示例
as for|about|this topic|that person
as for me|about the price|regarding your question
As for the price, it is too high.
Visual guide
Topic = current lane
As for the price,
[TOPIC: price]
|
v
[COMMENT]
it is too high
Same comment, topic marked: position: PRICE | too high particle: price TOP | too high pronoun: price | it is too high omission: Ø(price) | too high Ask: what is the frame?
语言视角
用母语深入讲解
Topic-comment structure is central in Mandarin discourse and allows the topic to appear before a comment that may have its own subject.
天气，我不太清楚。
tiānqì, wǒ bú tài qīngchu = weather, I am not very clear
在所学语言中
英语可以用 As for...、Regarding...、句首成分和语调提示话题，但很多时候主要依靠普通句子结构和上下文，而没有固定的话题标记。
As for the price, it is too high.
the price 是当前话题；后半句是在评论这个价格太高。
来自话题突出语言的学习者可能过度把成分放到句首，导致英语句子不自然或结构松散。
Good transfer potential
This block behaves relatively similarly, so you can transfer intuition more safely between the two languages.