This year the rebels stepped up attacks in the city and, at night, frequently set off explosions.

The period in which a sequence is set frequently has little to do with anything that happens within it.

It was frequently set to music, first in 1920, and achieved a separate life on the concert stage.

The images are frequently set to music and cut to the music's pace.

In practice is frequently set to 4 and a table of resulted frequency sets which have up to 50 frequencies is available.

The agenda is frequently set here, and the patrons' commentary worth an eavesdrop.

Pickers frequently set the woods on fire to create conditions more favorable to the berry's growth.

This is an arbitrary definition and is frequently set by the user.

Southern Europe has been set alight more and more frequently over recent years.

The public school system frequently sets this standard, although public schools use alternative approaches in some cases, as well.