by social convention礼节
charter made by general convention公约宪章
Declarative builds and build-by-convention声明式构建
be untrammelled by convention不受拘束;豪放
be fettered by convention受到传统的束缚
estoppel by convention反悔;禁止翻供;行为上的禁止翻供;禁止反言
justice by convention约定正义
estopped by convention不容否认协定