FAS在国际贸易中一般指free alongside ship，即船边交货。在该术语中，卖方在指定港、指定船边将货物交付买方以履行交货义务，并承担交货前的风险和费用；买方自货物在指定船边交货后，承担货物风险和此后发生的一切相关费用。

其英文释义如下：

Free alongside ship (FAS) is a contractual term used in the international export business that stipulates that the seller must arrange for goods to be delivered to a designated port and next to a specific vessel for easier transfer.

参考译文：船边交货（FAS）是国际出口业务中使用的一个合同术语，规定卖方必须安排将货物运送到指定的港口，并放在特定的船只旁边，以便于转运。

顺补充一些常见的货运方式：

Free on Board (FOB) means that the goods must be delivered onboard a designated ship. The buyer bears the shipping expense. The risk of loss or damage shifts to the buyer when it arrives at its ultimate destination.

Cost and Freight (CFR) is nearly identical to FOB, except that the buyer accepts responsibility when the goods are on board in the port, not when they arrive at their destination.

Delivered Ex Ship (DES) stipulates that the seller will deliver the goods to a port, but does not specify a wharf.

Delivered Ex Quay (DEQ) requires that the seller deliver the goods to a wharf at the destination port.