drop in

立ち寄る、ふらっと訪ねる

前もって約束せずに人を訪ね、たいてい短時間だけ過ごすこと。

やさしい英語で： To visit someone without arranging it beforehand, usually for a short time.

• Drop in whenever you like.
• My cousin dropped in yesterday.
• Shall we drop in on Anna after lunch?

使い方： drop in on someone (We dropped in on my aunt.); drop in at somewhere (I dropped in at the office.); drop in for something (Drop in for tea if you have time.)

類義語： drop by, stop by, pop in

よく使う表現： drop in anytime, drop in on someone, drop in for coffee

中に落とす、中に落ちる

容器や空間の中に落ちる、または物を中に落とすこと。

やさしい英語で： To fall, or let something fall, into a container or space.

• Drop a coin in the box.
• My keys dropped in the pond.
• He dropped the vegetables in the boiling water.

使い方： drop something in something (She dropped a coin in the jar.)

類義語： fall into, put into

よく使う表現： drop in something, drop something in

取り付ける、組み込む

機械に新しい部品を、特に車にエンジンを取り付けること。

やさしい英語で： To put a new part into a machine, especially an engine into a car.

• We can drop in a new engine.
• The mechanic dropped a replacement motor in yesterday.
• They dropped in better parts before the race.

使い方： drop something in (The mechanic dropped a new motor in.); drop in something (They dropped in a replacement engine.)

類義語： install, fit

反対語： remove

よく使う表現： drop in an engine, drop in new parts

他のサーファーの波に割り込む

別のサーファーがすでに乗っている波に割り込んで乗ること。

やさしい英語で： To start surfing on a wave that another surfer is already riding.

• That surfer dropped in on me.
• Never drop in when someone else has the wave.
• She apologized for dropping in on another rider.

使い方： drop in on someone (Do not drop in on a surfer already riding the wave.)

よく使う表現： drop in on someone, drop in while surfing

陥没する、崩れ落ちる

形を支えられなくなった建物などが内側に崩れること。

やさしい英語で： To fall inward because something is no longer strong enough to hold its shape.

• The roof dropped in.
• We feared the ceiling would drop in during the storm.
• Rotten supports caused part of the tunnel to drop in.

類義語： cave in, collapse

よく使う表現： roof may drop in, ceiling could drop in