?外部症状
... external sensor 释义：外部转感器 external symptom 释义：外部症状 External prosthesis for sonographic procedure 释义：外部假体超声描记操作 ...
外寒
Burnout is sometimes motivated by internal factors, Dr. Ballard says, and sometimes it really is a symptom of external ones.
FORBES: 10 Signs You're Burning Out -- And What To Do About It
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。