?圆头铁螺钉
... iron screw with oval head扁圆头铁螺钉 iron screw with round head圆头铁螺钉 iron screw with square head方头铁螺钉 ...
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。