- 丁(nail; spike)
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
isobutane
Isobutane is a type of organic compound.
isobutane
Isobutane is a type of organic compound.
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
A nail driven straight down looks like the character for nail or the fourth of the heavenly stems.
isobutane
isobutane
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