1. I was a dancing maniac, who whirled in the crowd around the world.
(Don't forget "l" when you trying on "r" in "whirled" and "world".)
2. I walked wobbly and worked wordlessly, swallowing warm worms.
(Shape of your mouth can make a lot of difference)
3. Three thousand thugs throw short swords and shout out of their throats.
(Most people only focus on "r" sound, actually I rarely found people could sound "th" properly. Did you bite your tongue all the time when you say it?)
4. True (Did you hear "r" sound in your pronunciation? that is why someone may sound accent-free to you, still rich in accent to native ears.)
(Don't forget "l" when you trying on "r" in "whirled" and "world".)
2. I walked wobbly and worked wordlessly, swallowing warm worms.
(Shape of your mouth can make a lot of difference)
3. Three thousand thugs throw short swords and shout out of their throats.
(Most people only focus on "r" sound, actually I rarely found people could sound "th" properly. Did you bite your tongue all the time when you say it?)
4. True (Did you hear "r" sound in your pronunciation? that is why someone may sound accent-free to you, still rich in accent to native ears.)