Ihopeyouapleasantjourney,2,haveagoodtrip.,2,BonVoyage!这是说法来源于法语词，有点矫情

Plain/Smoothsailing.也行，很简单

Wishyouareplainsailing.

Hopeeverythinggoeswell.都成,2,Haveapleasanttrip!,2,Mayyouhaveafinetrip.,2,Wishyouapleasantjourney

就是这么说,2,haveagoodtrip,2,Wishyouapleasantjourney,1,Iwishyouapleasantjourney,1,IWISHYOUAHAPPYVOYAGE

BEAGOODTRAVELLER

MAYAFAVORABLEWINDSENDYOUSAFELYHOME

三个都可以的,1,wishyouagoodjourney,1,Ihopeyouapleasantjourney,0,Haveagoodtrip/journey.,0,googluck!

haveagoodjourney;,0,Haveagoodtrip

一路顺风。

Haveasplendidvoyage.

一路顺风！

Haveafinetrip!

祝你一路顺风。

Mayyouhaveafinetrip.

祝你一路顺风。

Iwishyouafinetrip.

祝你一路顺风！

Haveapleasant...,0,