请输入您要查询的英文单词:
单词
optionality
释义
WordReference Random House Unabridged Dictionary of American English © 2024
op•tion•al
(op
′
shə nl),
USA pronunciation
adj.
left to one's choice;
not required or mandatory:
Formal dress is optional.
leaving something to choice.
option
+ -
al
1
1755–65
op′tion•al
′
i•ty
,
n.
op
′
tion•al•ly
,
adv.
1.
See corresponding entry in Unabridged
.
discretional, elective, voluntary.
随便看
cydnus
cyesis
cygnet
cygnus
cygnus a
cygnus x-1
cyke
cyl.
cyl
cylinder
cylinder block
cylinder desk
cylindered
cylinder front
cylinder glass
cylinder head
cylinderlike
cylinder press
cylinder saw
cylinder seal
cylindraceous
cylindric
cylindrical
cylindrical coordinates
cylindricality
英语词典包含188688条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2026/4/12 15:15:25