primarily
primarily — adverb
1. used for saying that one thing is the most important reason, cause, or feature o
used for saying that one thing is the most important reason, cause, or feature of something compared with others that affect it
Sophia chose to study biology primarily because she loved working outdoors.
primarily because + reason clause
The organization focuses primarily on helping children in rural areas.
focuses primarily on [topic]
Haruto's role in the project was primarily to organize the research data.
This small cafe is known primarily for its handmade pasta and fresh bread.
The damage to the building was caused primarily by heavy rain over several weeks.
- mainly
neutral and the most common choice for everyday speech
- chiefly
slightly more formal; common in written English
- mostly
focuses on proportion or quantity rather than importance
- predominantly
more formal; emphasizes the largest or strongest element
- secondarily
indicates lesser importance than the primary factor
- marginally
suggests only a small or unimportant degree
用法筆記
Can be placed before the main verb (She primarily reads non-fiction), before the complement (Her job is primarily administrative), or at the start of a clause for emphasis (Primarily, the goal is to reduce waste). The end position is less common.