( v. i. )
To move with a reciprocating motion; to move backward and forward, or upward and downward.
SEESAW
Meaning of SEESAW in English
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012
( v. i. )
To move with a reciprocating motion; to move backward and forward, or upward and downward.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012