But coalitions do not hold together forever, and the pain of sanctions often cuts both ways, affecting buyers as well as sellers. Countries like South Korea and Japan, for example, have curtailed their imports of Iranian oil only reluctantly; countries like China and Russia rarely play straight on sanctions in the first place.
但联盟不可能永远稳固，制裁之痛往往具有两面性，在影响买方的同时也影响卖方。比方说，韩日等国仅仅是勉强压缩从伊朗的原油进口，而中俄等国则从一开始就极少对制裁投赞成票。