This book is about systematic and methodical training.
这本书是关于有系统和有规律的训练。
The language input in the classroom environment is systematic and methodical but limited.
课堂环境的语言输入有系统、有条理，但有一定的局限性。
The language input in the classroom environment is systematic and methodical but limited.
课堂环境的语言输入有系统、有条理，但有一定的局限性。
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