be a pigboat
That vessel is a pigboat.
那艘船是一艘潜水艇。
潜水艇
通常装备有鱼雷的潜水战舰
submarine
通常装备有鱼雷的潜水战舰
a submersible warship usually armed with torpedoes
The crew spent six weeks inside the crowded pigboat during their patrol.
船员们在执行巡逻任务期间，在拥挤的潜水艇里待了六个星期。
用法提示：pigboat 是名词，意为潜水艇，在句中作介词 inside 的宾语。
Our grandfather served on a pigboat in the 1960s.
我们的祖父在20世纪60年代曾在一艘潜水艇上服役。
用法提示：pigboat 是名词，意为潜水艇，与介词 on 搭配表示在潜艇上服役。
The museum displays a decommissioned pigboat that visitors can tour.
博物馆展出一艘已退役的潜水艇，游客可以进去参观。
用法提示：pigboat 是名词，在句中作 displays 的宾语，指潜水艇。
That vessel is a pigboat.
那艘船是一艘潜水艇。
They operated a pigboat during the war.
战争期间他们操作一艘潜水艇。
grammar · medium
易错句子We transported the pigs by pigboat.
正确表达We transported the pigs by boat.
将“pigboat”误解为“运送猪的船”，但词典释义为“潜水艇”。正确表达应为“boat”或其他合适的船只。
grammar · medium
易错句子They pigboated across the sea.
正确表达They crossed the sea in a pigboat.
误将名词“pigboat”用作动词。英语中“pigboat”是名词，不能加-ed用作动词，正确表达需使用介词短语。
pigboat是军事俚语，submarine是标准术语。
pigboat泛指潜水艇，U-boat特指德国潜艇。
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