main.ly 5meIn7li adv [not gradable] usually or to a large degree 通常地，主要地，大部分地 I mainly go to bed around midnight. 我通常午夜才睡。 The group is made up of mainly young people. 这个团体多由年轻人组成。 They argued that the tax will mainly benefit the rich. 他们争辩说这项税收将主要有益于富人。