Slightly more vivid and 'newsy' than 立即 lìjí or 马上 mǎshàng. Heavy favorite in journalism, government communications and customer-service language.
mistakes
Strange word-by-word — '#1 time' — but never used to mean 'first time' (that's 第一次 dìyī cì). Always means 'at the very first moment something happens'.
