?第四纪海洋
... quaternary amines 四级铵 Quaternary ocean 第四纪海洋 quaternary surfactant 季铵表面活性剂 ...
Studies by the International Union for Quaternary Research conclude that some ocean levels have even fallen in recent decades.
FORBES: Hot Sensations Vs. Cold Facts
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。