2. Only under the dual guidance of school and family can conspicuous effects be achieved. 也只有在学校和家长的双重引导下，才能产生显著的效果。
3. Dual attributes of the leisure life provides the possibility for the leisure with moral choice. 由于休闲生活的双重属性，为休闲中的道德选择提供了可能。
英英解释
adj.
1. consisting of or involving two parts or components usually in pairs
2. having more than one decidedly dissimilar aspects or qualities
3. a grammatical number category referring to two items or units as opposed to one item (singular) or m
