形 alternative；

[例句] 所有闸阀都可以配置备选的聚四氟乙烯(PTFE)阀座环. All valves are available with optional PTFE seat rings.

[例句] 备选的木炭过滤器需搭配内部电机方可使用. The optional charcoal filter is available with internal motor options only.

ready，spare，[计] off-duty，[化] stand-by ；

[例句] 他老是记不起把自己阅读时用的放大镜放在什么地方，所以助手们会随身携带备用的。 He misplaces his reading glasses with such regularity that aides carry extras.

[例句] 大货车载着备用的弹药。 The wagons carried spare ammunition.

[方] （说不定， 也许） perhaps，maybe，probably ；

[例句] 又堵车了, 备不住 要迟到了! Another traffic jam ! It's likely that we'll be late.

make preparations ；

[例句] 打磨木头的表面，为刷清漆做准备。 Rub the surface of the wood in preparation for the varnish.

[例句] 约翰的手下正在为最后的进攻做准备。 John's soldiers were readying themselves for the final assault.

preparedness ；

[例句] 我们有准备,决不会一败涂地. We just can't possibly fail completely , after all the preparations we've made.

[例句] 总而言之, 我们要有准备. In short, we must be prepared.

stock ；

[例句] 这家商店备有各式各样的沙滩服装。 The shop stocks an extensive range of beach wear.

[例句] 边上备有一点芥末，可增加辣味。 A little mustard is served on the side to add further piquancy.

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[例句] 步骤 、 过程或设备向自动工作方式的转换. The conversion of a procedure, a process, or equipment to automatic operation.

[例句] 将一过程或设备转换成自动操作. To convert a process or equipment to automatic operations.

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[例句] 庆祝牙买加节的准备工作正开展得如火如荼。 Plans are rolling full steam ahead for the Jamaica Festival.

[例句] 找股票经纪人之前，先要做好必要的准备工作。 Before you go near a stockbroker, do your homework.

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[例句] 联盟已准备好采取必要行动。 The alliance stands ready to do what is necessary.

[例句] 这个研究小组已准备好随时开始工作. The research group is ready to start its work.

software ；

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[例句] 每次你发一份备忘的时候是否每个人都会收到? Copy the world every time you send a memo?

bondstone ；

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