to send a written complaint or opinion
发送书面投诉或意见 (fā sòng shū miàn tóu sù huò yì jiàn)
"Many viewers wrote in to complain about the poor sound quality."
"许多观众写信抱怨声音质量差。" (xǔ duō guān zhòng **xiě xìn** bào yuàn shēng yīn zhì liàng chà)
to unite countries for a common purpose or goal
to stop working temporarily for rest or recovery
to refuse to change your position when challenged
to extend over a large area or among many people
to use something carelessly; to discuss casually
to feel but not express anger openly