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1.The creatures are usually very cautious and go into their holes in the sand when someone passes.
cautious 谨慎的
He was very cautious about committing himself to anything.
他谨小慎微，从不轻易表态。
2.The aquarium wants to remind the eels that "humans are friendly".
remind 提醒
I had to remind myself that being confident is not the same as being perfect!
我得提醒自己表现得自信和表现得完美并不是一回事！
