English in everyday!(5)

spiral [spi·ral || 'spaɪərəl]

形螺旋的;螺线的; 盘旋的 名螺旋; 螺线; 螺旋形的东西
动盘旋; 螺旋形上升; 成螺旋形; 不断加剧地增加; 使成螺旋形; 使作螺旋形上升
adj. of or pertaining to a spiral; twisting around a fixed center point; helical
v. wind, coil, twist around an axis, form into a spiral, move in a looping or winding fashion; progressively increase or decrease

wrap [ræp]

动包装, 缠绕, 卷; 缠绕, 穿外衣, 重叠 名包装纸; 包装材料
v. pack; bind; cover; swathe; envelop; enwrap; encase; enclose; conceal
n.packaging; paper used for packaging

endorsement [en'dorse·ment || -mənt]

名 背书; 赞同; 签署; 支持
n. act of endorsing; signature on a document (as in a check or bill); approval, confirmation (also indorsement)

opacity [o·pac·i·ty || əʊ'pæsətɪ]

名 不透明; 暧昧; 不传导; 难懂
n.opaqueness; degree to which something is opaque; obscurity; fuzziness; amount of area on a film that absorbs light (Photography); stupidity

annotate [an·no·tate || 'ænəʊteɪt]

动注解, 给...作注解 形有注释的
v.provide analytical notes; make footnotes; explain
adj. explained, elucidated, containing explanatory comments