heptad的音标：heptad的英式发音音标为：['heptæd]heptad的美式发音音标为：['heptæd]...

Use a reliable method of contraception.采用安全的避孕方法。She is known to have liberal views on divorce and contraception.众所周知，她在离婚与避孕方面思想很开明。to give advice about contraception就避孕方法提供咨询Contraception birth control by prevention of...

carboxypeptidase的音标：carboxypeptidase的英式发音音标为：[kɑ:bɒksɪ'peptɪdeɪs]carboxypeptidase的美式发音音标为：[kɑˌbɒksi'peptɪˌdeɪs]...