1.  firstly
2.  the first thing is

• 1. 首先是: above all | above all things
• 2. 首先是体循环: First systemic circulation | First is the systemic circulation
• 3. 我想首先是要多说: I would like to say

更多释义

• 1.首先是眼睛要直视面试官。
  The first rule is to make eye contact with your interviewer.
  dict.yoduao.com
• 2.该计划现在比预定的计划晚了7年，首先是因为费用增加，其次是由于技术问题。
  The programme is now seven years behind schedule as a result, firstly of increased costs, then of technical problems.
  dict.yoduao.com
• 3.他首先是作家，然后才是科学家。
  He is a writer first and a scientist second.
  dict.yoduao.com

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