?? 詞語組成解析
iodine
['ai?di:n; (US) 'ai?dain]
n. <化>碘;
excretion
[[ik'skri:??n]]
n. 排泄, 分泌, 排泄物\\n[醫] 排泄, 分泌
??? 情景例句
Dad.
爸爸。
Time past cannot be called back again.
光陰一去不復返。
As usual, the police will have a difficult time.
同往常一樣,警察的日子將不好過,