Please demonstrate how to say :
微生物附着在碎屑上生长，这样的一个大桶会沉下去，但是当它脱去上面附着的藤壶以后他又会浮出水面。
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Click the red button and your browser will ask for permission to use your microphone. Allow it and start recording.
Say it as loud and as clear as you can! Please only say the given word/phrase once, and do not say anything else or explain anything.
You may then listen to your recording again. Submit it if you are happy with it.