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词汇
stand upon one's guard
释义
stand upon one's guard
警惕；提防；警戒
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UCUM
Ucun Estuary
U cup
u/cup/converter
u cup packing
U-cup packing
u-cup seal
u curve
U curve
u-curve
ucus
ucuuba
ucws
UCWunit control word
ucx
ucxes
Ucyanidins
UD
ud-
u'd
u-d
U-D
u.d
U.D
U/D
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更新时间：2026/9/20 17:38:05