safety chain
柯林斯词典
1. N a chain on the fastening of a bracelet, watch, etc, to ensure that it cannot open enough to fall off accidentally (手链、手表等防止突然开口掉落的)安全链条 (Also called guard)
返回 safety chain
1. N a chain on the fastening of a bracelet, watch, etc, to ensure that it cannot open enough to fall off accidentally (手链、手表等防止突然开口掉落的)安全链条 (Also called guard)