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1·But if they are wrong, an already crowded city will simply gum up.

但如果他们错了的话，这个已经拥挤的城市肯定会更糟糕。

2·Antibodies are proteins that stick onto a pathogen and gum up its works.

从化学成分上来讲，抗体属于一种蛋白质，它通过与病毒结合以阻断病毒的感染能力。

3·The hitch is that syngas from waste is full of tarry residue that tends to gum up the turbine.

问题是垃圾里产生的裂解气夹带着焦油残渣会堵塞涡轮设备。

4·That would add to the legal cost of transactions and further gum up a damaged channel of credit.

这将会增加交易的法律成本，此外还会把本已损坏的信贷通道弄得更糟。

5·But too often, human frailties gum up the works by leaving unforeseen breaches in otherwise secure systems.

但情况经常是，人为过失在原本安全的系统中留下意外的漏洞，把事情弄糟。

6·Gum up to apply gum Arabic or similar solution to a lithographic surface to protect it from oxidation and grease.

在柯式印版上涂上一层阿拉伯胶或类似的胶体以防止氧化或沾染油脂。

7·More than one attempt may be necessary, as may the injection of a bridging agent to further gum up the blowout preventer.

除此之外，可能仍将继续努力，因为置入“桥堵剂”可能会进一步卡住防喷装置。

8·Still, in some applications, nano-materials gum up the works, or break down after a few dozen charges and discharges, experts say.

然而，专家说，在某些应用条件下，纳米材料反而不利，或是会在几十次充放电后发生衰减。

9·Self-interested drivers opting for the quickest route do not take into account their effect of lengthening others' journey times, and so can gum up a new shortcut.

选择最快路径的自私驾驶员没有考虑他们的行为对于延长其他人旅行时间的影响。因而，可能堵塞一条新的捷径。

10·Gum up: to apply gum Arabic or similar solution to a lithographic surface to protect it from oxidation and grease. It also increases the hydrophilic property of the non-image areas.

上胶：在柯式印版上涂上一层阿拉伯胶或类似的胶体以防止氧化或沾染油脂。它并增强非印纹部份的亲水性。