Directly connected channels increase time lags, or latency, and reduce performance.
直接相连的通道会增加时间滞后，即等候时间，以及降低性能。
2.dispense with 免除，省掉
Debit cards dispense with the need for cash altogether.
有借记卡就完全不需要用现金了。
3.without regard for 不顾……，不考虑……
Lacking empathy, people act only out of self-interest, without regard for the well-being or feelings of others.
如果没有同情心，人们只会从自身的利益出发，而不会顾及他人的状况和感受。
4.cannon-fodder 炮灰
The infantry were cannon-fodder in the attack that was bound to fail.
在那场必定要失败的进攻中，步兵成了炮灰。
