All that movement makes it hard for predators to see individuals in a large group.
所有这些运动使得捕食者很难在一个大群体中看到个体。
Industry lobbying makes it hard to get healthy foods.
行业游说使得人们很难获得健康食品。
Heat makes it hard to breathe.
过高的热度导致呼吸困难。
That makes it hard for the immune system to recognise.
这使得免疫系统难以识别它。
This makes it hard fora planet to develop an atmosphere.
因此，行星就很难产生大气层。
The bad taste makes it hard to swallow.
苦味常常令我们难以下咽。
That makes it hard to support his family.
这样让他很难供养一家人。
Her incompetence makes it hard for her to keep her job.
她在工作上的不称职让她很难保住这份工作。
This attitude makes it hard to sell directly to Western consumers.
这种态度使得直接销售给西方消费者更加困难。
Avoid anything that makes it hard for the spider to crawl your site.
避免任何会阻碍爬行器在站点中漫游的东西。
And it is a form of complex pricing which makes it hard to compare offers.
同时这也是一种复杂的定价方式，使消费者难以对价格进行比较。
Do remember that Mercury makes it hard to think clearly at times like this.
一定记住，水星有时会让你难以想清楚。
Generation gap makes it hard for parents and children to understand each other.
代沟使父母与孩子之间相互难以理解对方。
Second, China's fixed exchange rate makes it hard to keep credit growth under control.
第二，中国的固定汇率制度使得很难控制信贷增长。
This makes it hard for operators to build brand loyalty, let alone sell premium services.
如此一来，运营商就很难让客户建立起品牌忠诚度，更不用说向他们推销额外的收费服务了。
This makes it hard to measure how any individual compound might affect the endocrine system.
这就造成困难，很难衡量任何一种化合物到底会如何影响内分泌系统。
This makes it hard to measure how any individual compound might affect the endocrine system.
这就造成困难，很难衡量任何一种化合物到底会如何影响内分泌系统。
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