give-and-take lines 协调线
give-and-take relation 施受关系
give-and-take trade 互让贸易 ; 平等交换贸易
2， greenhouse effect 温室效应
PHRASE When something is liable to happen, it is very likely to happen. 很有可能的
Only a small minority of the mentally ill are liable to harm themselves or others.
ADJ If people or things are liable to something unpleasant, they are likely to experience it or do it. 易于…的 [v-link ADJ 'to' n]
She will grow into a woman particularly liable to depression.
ADJ If you are liable for something such as a debt, you are legally responsible for it. 负法律责任的 [v-link ADJ]
The airline's insurer is liable for damages to the victims' families.
liability N-UNCOUNT 责
The company does not accept liability for fragile, valuable or perishable articles.
4， in the least
No one is in the least interested in the marks a little child gets on his test.
The space shuttle, the world's first true sapceship, is a magnificent step in making the impossible possible for the benefit and survival of man.
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