to reply to someone’s complaint or message
回复某人的投诉或消息 (hui fu mou ren de tou su huo xiao xi)
"The company promised to write back within 48 hours."
"公司承诺在48小时内回复" (gong si cheng nuo zai 48 xiao shi nei hui fu)
to win or achieve something valuable or important
to study or read something carefully
to review or repeat material for better understanding
to rely on goods brought from other countries
to divide a project into smaller parts or stages
to make efforts to become better or achieve progress
