Duval could switch easily from French to English.

杜瓦尔可以在法语和英语之间自如切换。

youdao

Do you want to see Monsieur Duval, Sir?

先生是不是想去拜访迪瓦尔先生？

youdao

Since Monsieur Duval did not return to see me, I resolved to go to him.

既然迪瓦尔先生没有再来看我，我就决意到他家里去。

youdao

From Mallory Square we walk to Duval Street.

VOA: special.2010.03.22

There are many other businesses along Duval Street.

VOA: special.2010.10.08

Duval Street is a lively area.

VOA: special.2010.03.22

Under the precedent set by Duval's decision, they too will be entitled to compensation.

CNN: Court: Army Corps of Engineers liable for Katrina flooding

Montgomerie tees off his US Open campaign alongside Americans David Duval and John Cook.

BBC: SPORT | Golf | Monty fears putting vulnerability

Alas, I have no easy solution I can throw to the Duval County school board members.

FORBES: Will Jacksonville, Florida, kill school sports?