(2)maintain/ retain/ remain
(3)beforehand/ in advance
- 十駕Lv 51 decade agoFavorite Answer
mail: to send by mail; place in a post office or mailbox for transmission. = 郵寄，投郵
send: to cause to be conveyed or transmitted to a destination = 寄、送： to send a letter.
maintain: to keep in existence or continuance; preserve; retain = 保持： to maintain good relations with neighboring countries.
retain: to keep possession of; to continue to use, practice, etc. = 保持、保有、保留： to retain an old custom.
remain: to continue in the same state= 保持（現狀）：to remain at peace.
beforehand = in advance; in anticipation; ahead of time = 預先、事先、先行： We should have made reservations beforehand.
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