A lot of the complex logistics for supply chains are done by specialized computer software.

许多供应链的复杂物流都是由专门的计算机软件完成的。

Well, it depends. At most restaurants you tip 15%, but at fast food chains you don't tip.

嗯，这得视情况而定。在大多数餐馆你给账单金额15%的小费就好，但在快餐连锁店你是不用给小费的。

These chains seem fairly solid.

这些链子看着挺结实。

Mad guard dogs slavered at the end of their chains.

看门的疯狗在锁链的一头垂涎欲滴

Small businesses are losing out to the large chains.

小商店被大型的连锁店抢了生意。

We sell wholesale to several chains that sell retail to the public.

我们批发给几家向公众零售的连锁店。

We need to put chains on the tires.

我们得给轮胎上链子。