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Sentence
Span Details
伸開線
involutenoun
は、
topic markergrammar
円
yen; Japanese currency unit; circle; ringnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
インボリュート曲線
involute curvenoun
を
object markergrammar
指す
point at; point to; nominate; designate; select someone; indicate; identify; refer to; point out; play shogi; make a shogi move; extend the arm straight ahead in dancegodan verb
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb