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难题
释义
难题difficult problem puzzle conundrum problem 【法】 knot problem staggerer toughie 难题nántí[difficult problem] 不容易解答的题,也指难以处理的事情出难题
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trgparsone
TRH
tri
tri-
tri-2-ethylhexyl phosphate(TEHP)
tri-2-ethylhexyl phosphine oxide(TEHPO)
tria
triable
triac
tria capita
triacetamide
triacetate
triacetin
triacetonamine
triacetonediamine
triacetyldiphenolisatin
triacetyl-glucose
triacetyloleandomycin
triacetylpyrogallol
triacid
triacid amide
triacid base
triacid salt
triacid stain
triacontahexaene
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更新时间:2026/1/14 8:43:52