我需要一把锯子来修剪这些树枝。

I need a ___saw to trim these tree branches.

他用电锯锯开了那块厚木板。

He ___sawed through the thick plank with an electric saw.

正如那句老话所说，'早起的鸟儿有虫吃'。

As the old ___saying goes, 'the early bird catches the worm'.

他来回锯动木板。

He ___sawed the wooden board back and forth.