The system is both practical and ecologically sound.
这个系统不但切合实际，从生态学观点来看也是合理的。
It is economical to run and ecologically sound.
它运行高效且有益生态。
Decleor's caring attitude does not stop at your body, as they also use ecologically sound ingredients, avoid synthetics and do not test their products on animals.
思妍丽的关怀态度不只停留在您的身体，他们同样在配方中运用有生态学基础的成分，避免使用人工合成材料，也不会进行动物实验。
Decleor's caring attitude does not stop at your body, as they also use ecologically sound ingredients, avoid synthetics and do not test their products on animals.
思妍丽的关怀态度不只停留在您的身体，他们同样在配方中运用有生态学基础的成分，避免使用人工合成材料，也不会进行动物实验。
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