Progressive tense
进行时
📖 牛津释义
progressive tense
(also continuous tense), (grammar) any of the verb tenses which express action that continues over a period of time, using the -ing form, as in `I am/was/will be/have been writing' 进行时态（动词时态, 表示某一期间持续的动作, 使用-ing形式, 如I am/was/will be/have been writing中者）
the present progressive tense 现在进行时态.
🧩 词语组成解析
🗣️ 情景例句
Hi, Tom, this is Mary.
嗨，汤姆，我是玛丽。
Our first bill came yesterday, and we have some questions.
我们昨天收到的第一张帐单，有一些问题。
The idea of colonising Mars---- a world 160 times more distant than the Moon----
征服火星的计划-一个比月球远160倍的星球