Whatever the convention is within a system of differences, that's what makes the sign intelligible.
这些惯例存在于一个有差别的系统中，这就让符号变得有意义了。
2
Is "system malfunction" a justifiable defence for a robotic fighter plane that contravenes the Geneva Convention and mistakenly fires on innocent civilians?
“系统故障”能否可以成为一架违反日内瓦公约的机器战斗机强伤无辜市民正当的解释？
3
The dollar emerged at the center of the monetary system that took its name from the 1944 convention in Bretton Woods, N.H.