(as) tough as old boots
US /əz tʌf əz oʊld buːts/
UK /əz tʌf əz oʊld buːts/
1.
像老靴子一樣結實, 非常堅韌
very strong and able to deal with difficult situations
:
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My grandmother is 90 years old and still (as) tough as old boots.
我奶奶90歲了，身體還像老靴子一樣結實。
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You need to be (as) tough as old boots to survive in this industry.
在這個行業生存，你需要像老靴子一樣結實。