详细解释:a. 确信, 必然的, 必定的
ad. 当然, 确实地, 无疑地
相关词组:
for sure
feel sure that
make sure
make sure of sth
make sure that
sure enough
to be sure
as sure as a gun
as sure as eggs is eggs
as sure as death
as sure as nails
as sure as fate
as sure as one lives
be sure of oneself
feel sure of
词型变化：
形容词比较级:surer最高级:surest名词:sureness词意辨析：
sure, certain, definite, positive这些形容词均含“无疑的，确信的”之意。
sure: 侧重主观上对某事确信无疑。
certain: 与sure同义，但语气比sure强，着重指有确切理由或不容置疑的证据所支持的确信。
definite: 指已毫无怀疑的余地。
positive: 语气强烈，指对自己的看法或作的结论的正确性有不可动摇的信念。英语解释：
形容词 sure:
having or feeling no doubt or uncertainty; confident and assured同义词：certain