为了使大家便当

for everyone's convenience

便当得很

very easy

没有这么便当

not so easy

“的哥”中午在街头买个便当就打发了。

Taxi drivers just buy a boxed lunch on the street at lunchtime.

为了节省开支，日本男人目前流行带便当去上班。

To save money, it is popular now for Japanese men to go to work with a packed lunch.