邪恶的，有害的，致命的—sinister， a sinister smile. diabolic corrupt forbidding
可怕的， 令人难亲近的pernicious virulent
秘密的，偷偷的--cryptic
含有隐义的; 晦涩难懂的; 神秘的furtive， furtive movements
偷偷摸摸的， 鬼鬼祟祟的， 秘密的covert
PR Some people choose friends who are different form themselves. Others choose friends who are similar to themselves. Compare the advantages of having friends who are different from you with the advantages of having friends who are similar to you. Which kind of friend do you prefer for yourself? Why?
隐蔽的; 不公开的; 秘密的： covered hidden hideaway shelter ， sneak
veiled s避难所--asylum haven home institution refuge shelter harbor
谨慎的，警觉的--wary chary vigilant discreet considerate cautious prudent
careful circumspect
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