one

one

one person，alone

one day

year before last

day before yesterday

number one，first，first place

together

once，one time

full，a lot

very hard，with utmost effort

living by oneself，living alone​

what on earth…

a house，a home

much more，still more

all at once

just in case​，pretty much

one way，the other way

time，moment

first-class，top grade

whole life，a lifetime

instant，moment

species，kind

match，agreement

general，universal

single word，a few words

one part，one portion

by some chance

identical，same

only，sole，unique

minute，moment，an instant​