英和和英

to laugh loudly―roar with laughter

to be about to laugh

Let's smile.

Fie upon you!

howl with laughter

to laugh a little

to laugh at someone

in fits of laughter

giggling

have a merry laugh

burst into laughter

have a good laugh

bust out laughing

was laughed at；were laughed at

Please smile.

I can not but laugh―can not help laughing―can not keep from laughter.

laugh out

to laugh a matter away

emotional activity caused by object (derision; laugh at, ridicule, sneer, mock etc.)

Try to smile.

a soft partly suppressed laugh

to smile

to laugh to oneself

the state of enjoying and laughing

a horse-laugh

of laughing, in a silly manner

a laughable affair―a ludicrous mistake―ridiculous conduct

to force a laugh

laugh aloud

to titter