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请输入您要查询的英文单词：
单词
first mate
释义
first mates是first mate的复数
first mate
美
英
na.
【航】大副
复数：
first mates
英汉
英英
na.
1.
【航】大副
n.
1.
an
officer
of
high
rank
on
a
ship
that
is
not
part
of
the
navy
例句
释义:
大副
随便看
Optical storage device
optical storage devices
optical storage interfaces
optical storage library
optical storage media
optical storage subsystem
optical storage system
Optical Storage Technology Association
optical store
optical strain
optical strain gage
optical strain gauge
optical strain sensing
optical strip
optical stripe filter
optical subcarrier multiplexing
optical submersion sensor
optical subsystem
optical subtraction
optical sun
optical superheterodyne receiver
optical superheterodynereceiver
optical superheterodyning
optical superposing
optical superposition
英汉双解词典包含2704715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。
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更新时间：2026/7/20 10:46:59