He joined the consular service in China, chiefly because this was one of the few job vacancies.

他到驻华领事馆工作，主要是因为这是为数不多的几个空缺职位之一。

His response to attacks on his work was chiefly bewilderment.

对于人们对他工作的指责，他的反应主要是很困惑。