he may have been drifting on ocean currents for months. 可能已经在洋流中漂流了数月

113. This male Columbus crab - barely bigger than your thumb nail -
     这只和拇指指甲差不多大的雄性哥伦布蟹
114. is a castaway.
     漂泊无归
115. Clinging to his net,
     它紧紧抓着网
116. he may have been drifting on ocean currents for months.
     可能已经在洋流中漂流了数月
117. Now, fully grown, he needs to find a partner.
     如今它已经长大了 需要找个伴侣
118. But where?
     但哪儿找呢
119. Certainly not here,
     肯定不是这儿

来自《行星地球 第三季 第二集 Planet Earth S03E02 海洋》第 116 行