对此应予注意
Attention should be paid to this
以上为机器翻译结果，长、整句建议使用 人工翻译 。
紫色翡翠在黄光下观察，会显得紫色较实际为深，所以应在自然光下观看为好，对此应予注意。
Purple Jade was observed under the yellow light would make it more practical for deep purple, it should be under natural light, watch for good, which should be noted.
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