Even though they eventually split off, before that it's just one single vessel, so the oxygenated and deoxygenated blood mix.

但即使它们最终分开了，在分开前还是一条血管，因此有氧血和无氧血混合了。

The celiac trunk is a single vessel, but it has three branches.

腹腔干是一个单一的血管，但它有三个分支。

Born in 1970 with a single vessel trading between Somalia and southern Italy, msc last year overtook A.P. Moller-Maersk to become the world's biggest container-shipping company.

msc 成立于 1970 年， 当时只有一艘船在索马里和意大利南部之间进行贸易，去年超越 A.P. Moller-Maersk 成为世界上最大的集装箱航运公司。

Serving their Vietnamese patrons turned the Zhengs and other pirates from ragtag gangs aboard single vessels into professional privateer fleets with dozens of ships able to hold their own at sea.

为他们的越南主顾服务使郑家和其他海盗从单船上的乌合之众变成了专业的私掠船队，拥有数十艘船，能够在海上保持自己的地位。