可想而知 (ho2 soeng2 ji4 zi1) — one may well imagine; no need to mention in Cantonese
hoˊ²可soengˊ²想jiˎ₄而ziˉ¹知Mandarin Pinyin: ke3 xiang3 er2 zhi1
Meaning of 可想而知
nounone may well imagine; no need to mention
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