grisaillen.
英 grɪ'zaɪ(l); -zeɪl
中文n. 纯灰色画；纯以灰色的装饰画法
词根词源
grisaille (n.)painting technique using gray tints, 1848, from French grisaille (17c.), from gris "gray" (12c.), which is from Frankish *gris or some other Germanic source (cognates: Dutch grijs, Old High German gris; see gray (adj.)).
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