階的英文：
rank or step
stairs

參考例句：
  • In a floating - point representation,the numeral that represents the expon ent.
    在浮點(diǎn)表示法中，表示階的數(shù)字。
  • gault stage
    【古】(早白堊世晚期的)高爾特階
  • The vibration is varied in frequency over a range on the order of 5 to 2, 000 cps, usually at a constant octave
    振動(dòng)的頻率在5到2000赫的范圍內(nèi)變化，通常用一常值的八階變化率。
  • Mossy steps are slippery
    苔階滑溜
  • A woman with a malicious tongue is a pedlar of trouble
    婦人長(zhǎng)舌為厲之階
  • It falls outside the scope of the formal taxonomic categories
    它不屬于正規(guī)植物分類學(xué)的分類階元的范疇。
  • The second tone of the diatonic scale in solfeggio. ray
    音音名中自然間階的第二個(gè)音階
  • Beside the earthen doorstep, bubbles in puddles of rainwater were whirling about like mad
    土階邊的水泡兒，泛來(lái)泛去的亂轉(zhuǎn)。
  • One of the steps of a winding staircase.
    斜踏步轉(zhuǎn)彎的樓道處的一個(gè)梯階
  • A hymn of irregular meter sung after the gradual.
    (天主教)圣歌彌撒開(kāi)階歌后唱的圣歌

rank是什么意思：
n. 排；等級(jí)；軍銜；隊(duì)列；行列
v. 排列；把…分等；列為；列隊(duì)
adj. 討厭的；惡臭的；繁茂的
  • formation; rank
    隊(duì)形
  • He rose from the rank of captain to the rank of general.
    他從上尉升到將軍。
  • Your rank is next to mine.
    你的排名居于我之后。

step是什么意思：
n. 腳步；步態(tài)，步伐；步驟；措施；階段，等級(jí)；臺(tái)階，平臺(tái)；舞步
v. 踩，踏；跨步，行走；跳舞；使成階梯狀
  • step by step welding
    跨步焊法
  • It is a step class.
    這是踏板操訓(xùn)練班。
  • the execution of steps
    舞步表演

stairs是什么意思：
n. 樓梯，階梯
  • She has trouble navigating the stair.
    她上下臺(tái)階有困難。
  • They went clumping up the stairs.
    他們拖著沉重的腳步走上樓。
  • She pegged down the stairs.
    她急忙下樓。

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