黑寡妇是臭名昭著的蜘蛛，可以通过它们腹部上彩色沙漏形斑点来识别。
Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens.
印度警方用彩色的水喷洒不羁的人群，被染色和淋湿的煽动者更容易识别。
Police in India spray unruly crowds with coloured water: stained and sodden agitators are easier to identify.
这种 ATM使用指纹生物识别感应器，并为提现预设彩色标志按钮。
This ATM uses a fingerprint biometric sensor for security and offers color-coded buttons for preset cash withdrawals.
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