短裤仅仅只要16美元用英文怎么说

"短裤" 用英语叫做 "shorts".
"仅仅只要16美元" 用英语可以说成 "only for $16" 或 "just for $16"。
例句：

These shorts are only for $16. (这些短裤只要16美元。)
I found a great deal on shorts, they're just for $16. (我在短裤上找到了一个很好的交易，它们只要16美元。)