on chiefly被携带;能达到;支持;运送
work chiefly主要地工作
include chiefly主要包含
engineer chiefly主要设计
chiefly accomplished主要完成
chiefly consists主要包含
concern chiefly主要关系到
flourish chiefly最高地享有盛名
depend chiefly主要地依靠
ADV（副词） You use chiefly to indicate that a particular reason, emotion, method, or feature is the main or most important one. 首要地
He joined the consular service in China, chiefly because this was one of the few job vacancies.
他参加了驻华领事馆的工作，主要是因为这是为数不多的几个空缺职位之一。