In doing scientific experiments, one must be more than careful with the instruments.
做科学实验时，一个人对仪器必须非常小心。
In doing scientific experiments, one must be more than careful with the instruments.
在做科学实验的时候，一定要非常小心实验设备。
In doing scientific experiments, one must be more than careful with the instruments.
做科学实验时，对待仪器必须非常小心才行。
When doing scientific experiments, one must be more than careful with the instruments.
做科学实验的时候，要特别注意保护实验仪器。
When doing scientific experiments, one must be more than careful with the instruments.
做科学实验的时候，要特别注意保护实验仪器。
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