单词able seaman
un.: 熟练水手
网络: 一等水兵；二等兵；一等水手
（英国海军）一等水兵:
a sailor of lower rank in the British navy
熟练水手
Able Seaman Green said she and her ship mates would celebrate this Christmas at sea as they conduct security patrols in the Persian Gulf.
二等兵格林说她和她舰上的伙伴将在波斯湾上庆祝圣诞节。
it means you have to learn the ropes before you become an able seaman.
意思就是在你成为一个真正的航海员之前你必须先学会系绳子