alternation
英 [,??lt?'ne???n]
美[,?lt?'ne??n]
中低頻詞TOEFL
詞態(tài)變化
復(fù)數(shù):?alternations;副詞:?alternately;形容詞:?alternate;
助記提示
1. altern- + -ation.
2. => one after the other, by turns.
3. Alternate means "by turns;" alternative means "offering a choice." Both imply two kinds or things.
英文詞源
- alternation (n.)
- mid-15c., from Old French alternacion, from Latin alternationem (nominative alternatio), noun of action from past participle stem of alternare (see alternate (v.)).
雙語例句
- 1. The alternation of sun and snow continued for the rest of our holiday.
- 我們剩余的假期里依舊時而晴天時而下雪。
來自柯林斯例句
- 2. Light and shade come in swift alternation ; Days and months flash by as quickly as a weaver's shuttle.
- 光陰似箭,日月如梭.
來自《現(xiàn)代漢英綜合大詞典》
- 3. There is an alternation of black and white stripes in that cloth.
- 那匹布黑白條紋相間.
來自辭典例句
- 4. This alternation feature is commonly related to emplacement of C - shaped rolls.
- 蝕變的特征一般同C形的卷型礦化有關(guān).
來自辭典例句
- 5. These modifications include the chemical alternation of the bases.
- 這種修飾作用包括堿基的化學(xué)變化.
來自辭典例句