英和和英

副詞

by oneself (not comparable)

1. Alone; without assistance or help from others.

   I have always wondered why shoe salesmen think can't I tie my shoes by myself.

   You ate the whole thing by yourself?

2. Alone, without another's company

   He sat by himself in the corner, waiting quietly.

3. (まれに) Used other than as an idiom: see by,‎ oneself.

   He kept the gun by himself at all times.