lengthen
verb
ˈleŋθən
verb
1
to
make
something
longer
or
to
become
longer
（使）延长，（使）加长;
Can
you
lengthen
this
skirt
for
me?
你能不能帮我把这条裙子改长？
The
days
lengthened
as
summer
approached.
随着夏天来临，白天变长了。