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For Life

Welcome back! We've been looking forward to this day all week! How was your holiday? We truly hope it was everything you wanted it to be!

And now, with much ado, we present you with the very first WordMaster of 2005!

Today's LessonCATEGORY: 間違いやすいボキャブラリー
SPEED UP / SLOW DOWN   速度を上げる/速度を落とす


  • To speed up is to move or occur more quickly, or to make something move or occur more quickly.

    To slow down is to move or occur more slowly, or to make something move or occur more slowly.

    Be Careful! The opposite of speed up is slow down. We do NOT say “speed down”.
  • speed up は、前より速く動く、または、何かの速度を上げる、という意味です。

    slow down は、前よりゆっくり動く、または、何かの速度を落とす、という意味です。

    注意:speed up の反対は、slow down です。speed down とは言いません。


  1. (a passenger to the driver of a taxi)
    Could you speed up a little, please? I'm going to be late.
  2. Time seems to speed up as you get older.
  3. These new robots should really speed up production.
  4. The new software was supposed to speed up Internet access, but it seems to have slowed it down. Downloads take longer than ever now.
  5. Slow down! I can't walk that fast.
  6. Slow down! The speed limit on this road is only 40 kilometers per hour.
  7. It's believed that vitamins A, C, and E may slow down aging.

英会話レッスンSee you again tomorrow!