Englishfor English speakers
lasting
—
adjective
(= permanent)
continuing or enduring without marked change in status or condition or place
permanent secretary to the president
permanent address
literature of permanent value
—
adjective
(= durable, long-lasting)
existing for a long time
hopes for a durable peace
a long-lasting friendship
—
adjective
lasting a long time without change
a lasting relationship
—
adjective
(= persistent)
retained; not shed
persistent leaves remain attached past maturity
the persistent gills of fishes
several
Determiner
—
Several things is a small number of things. More than two, but not very many.
It rained for several days last week.
We changed several of them, but left others untouched.
week
Noun
—
A week is a period of time that lasts seven days.
There are seven days in one week.