he was thus extremely well informed

he was thus extremely well informed and very likely to have helped his own captains by giving them information they otherwise wouldn't have had

結果 (繁體中文) 1:

他因此非常靈通，並很可能通過給他們，否則不會有這些信息幫助自己的隊長

結果 (繁體中文) 2:

因此，他非常瞭解情況，很可能通過給他們的資訊，否則不會有説明自己的隊長

結果 (繁體中文) 3:

囙此，他非常消息靈通，極有可能幫助自己的船長，向他們提供否則他們不會得到的資訊