Note: Overstriking words show the button of machine or operation handle.
注：黑体字表示机器按钮或操作手柄。
Overstriking for Chinese-English vocabulary contrast ; underline for correction record.
加粗是中英词汇对照的标记；下划线是改错记录。
Overstriking for Chinese-English vocabulary contrast ; underline for correction record.
加粗是中英词汇对照的标记；下划线是改错记录。
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