海运

hǎi yùn dān jù

海运单据

marine document

hǎi yùn guī zé

海运规则

shipping regulations

hǎi yùn yùn fèi

海运运费

ocean freight

zuì fán máng de hǎi yùn háng xiàn

最繁忙的海运航线

the busiest sea lanes

hǎi yùn yè bù jǐng qì

海运业不景气。

The shipping trade was depressed.