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。
He joined the consular service in China, chiefly because this was one of the few job vacancies.
主要的区别是你参加了一门课程，而你只是听了一节课。
The main difference is that you participate in a lesson whereas you just listen to a lecture.
如果你住在一个活动场地附近或者城市的主要中心，你可以从参加者那里得到靠近你车道的停车费。
If you live near an event space or major urban center, you can collect parking fees from attendees willing to pay for proximity.
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