この噂は本当かしら。

この噂は本当かしら。

I wonder if this rumor is true.

この噂(うわさ)は本当(ほんとう)かしら。

Kono uwasa wa hontō kashira.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

噂 (うわさ)

rumour; rumor; report; hearsay; gossip; common talk

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

本当 (ほんとう、ほんと)

truth; reality; actuality; fact; proper; right; correct; official; genuine; authentic; natural; veritable

かしら (かしら)

I wonder

Readings: ソン、うわさ

Meanings: rumor, gossip, hearsay

Readings: ホン、もと

Meanings: book, present, main, origin, true, real, counter for long cylindrical things

Readings: トウ、あ.たる、あ.たり、あ.てる、あ.て、まさ.に、まさ.にべし

Meanings: hit, right, appropriate, himself