on the wing

飛行中に、飛びながら

空を飛んでいる間に。

やさしい英語で： While flying through the air.

• Swallows catch insects on the wing.
• We watched the geese on the wing.
• The young birds can now feed on the wing.

類義語： in flight, airborne

よく使う表現： birds on the wing, on the wing feeding

移動中で、旅をして

あちこち移動したり、旅をしたりしていること。

やさしい英語で： Moving or travelling from place to place.

• The travellers were on the wing again.
• He was always on the wing, moving between towns.
• Their restless life kept them on the wing.

類義語： on the move, in motion

反対語： stationary

よく使う表現： always on the wing, travellers on the wing

稼働中に、作業を進めながら

作業やシステムの稼働を続けながら何かを行うこと。

やさしい英語で： While an activity or system is already running.

• We adjusted the plan on the wing.
• The team solved problems on the wing as work continued.
• Changes made on the wing kept the operation running.

類義語： on the fly

よく使う表現： changes on the wing, on the wing adjustments

出発しようとして、旅立つところで

その場を離れるところ、または出発の準備をしていること。

やさしい英語で： Leaving a place or getting ready to leave.

• Our guests are on the wing.
• With bags packed, she was on the wing by dawn.
• We shall be on the wing tomorrow morning.

類義語： departing, leaving

反対語： arriving

よく使う表現： already on the wing, on the wing tomorrow