有人说，这归因于美国开荒时代留下的传统。
Some say that this is due to the ftontier tradition of America.
别说这是开荒阶段，开荒就只能是治疗有压力？
Don't say this is cultivated stage, cultivated can only be treatment has the pressure?
别说这是开荒阶段，开荒就只能是治疗有压力？
Don't say this is cultivated stage, cultivated can only be treatment has the pressure?
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