英和和英

the twentieth

the twentieth

No. 20 （number twenty）

a twentieth

the late 20th century

the number 19 or 20

a pound

20 below

XX [xx]

Room No. 20

the number 10 or 20

Twentieth time.

Twenty times.

Twenty items.

Thirty sheets.

Thirty (flat objects).

Twenty people.

one and twenty＝twenty‐one

It is No.20.

from twenty to thirty―between twenty and thirty

seven twentieths

the number thirty

twelve dozen

CXV

Twenty balls.

Thirty items.

in AD 200

10 G

Thirty degrees.

one and twenty