酸、酸性の
acid rain
bypass
moss
break in on
フッ化物
metabolism
wheat
fluoride
strategy
石油、鉱油
nitrogen
rubbish
dissolve
petroleum
樹脂
copper
buy out
resin
settle in
硫酸
phonetic
back down
sulfuric acid
water down
亜鉛
organ
single out
zinc
pageant
酸化防止剤
slaughter
antioxidant
garment
unperturbed
長方形
wash down
canine
reference
rectangle
正方形（の）
immune
square
pick through
flood
円すい
cone
participation
hold down
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