ハトもダチョウも共に鳥だが、前者は飛べるし、後者は飛べない。

tbd

The pigeon and the ostrich are both birds; one can fly and the other cannot.

ダチョウは空中を飛ばない。

tbd

An ostrich does not fly through the air.

ダチョウは空を飛べない。

tbd

Ostriches can't fly.

Ostriches are incapable of flight.

ダチョウは羽があるが飛べない。

tbd

Ostriches have wings, but they can't fly.

The ostrich has wings, but it cannot fly.

ダチョウはカンガルーと同様空を飛べない。

tbd

An ostrich cannot fly any more than a kangaroo can.

そんなわけでダチョウの肉は牛肉や豚肉の２倍以上の値段となる。

tbd

That's why ostrich meat costs more than twice as much as beef and pork.