英和和英

Twenty years.

a number of decades

for fifty years―during fifty years

Ten years ago is an old time.

For over 20 years

Two years.

Second year.

fifteen hundred years；one thousand five hundred years

He has held his office for ten years.

He has held his office for ten years.

half a year―a half year

one year

for several decades

a time period of one-thousand years

twelve years

one whole year

a period of five years

a period of 10 years

throughout the year

a span of five years

a hundred years

every other year

a friendship of twenty years

He has held his office for ten years.

the second year

A decade of unglutted ire

How many years?

the third year

5 years ago

in units of several decades