collocation

'Fast food' is a common collocation, whereas 'quick food' sounds unnatural.

(Chinese) “Fast food”（快餐）是一个常见的词语搭配，而“quick food”听起来则不自然。

Learners often struggle with heavy collocations like 'make a decision' instead of 'do a decision'.

(Chinese) 学习者经常在强搭配上遇到困难，比如要用“make a decision”而不是“do a decision”。