形容词是advantageous，表示有利的，例如：

1.A free trade agreement would be advantageous to both countries.自由贸易协定对两国都会有利。

2.Free exchange of goods was advantageous to all.商品自由交换惠泽八方。

3.An ear for foreign languages is advantageous.能够听懂外语是种优势。