both sides; both flanks
Refers to the two sides of something, often the left and right sides of the body, a road, or an object.
彼は両脇に荷物を抱えていた。
He was carrying luggage under both arms.
道の両脇に桜の木が植えられている。
Cherry trees are planted on both sides of the road.
Cherry trees line both sides of the road.
Secretaries flanked the president on both sides.
He was walking with luggage tucked under both arms.