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- O'Rand's group is trying an alternative approach called immunocontraception, which tries to have the immune system attack sperm and render them incapable of fertilization. 欧兰德的小组正在尝试另一种免疫避孕法，就是试图促使男性的免疫系统破坏精子，使其暂时失去生育能力。
- In all these instances, our immune system attacks and eliminates the invading virus. 所有这些情况下，我们的免疫系统会攻击并清除这些侵入的病毒。
- Mixed connective tissue disease (MCTD) or Sharp's syndrome is a human autoimmune disease in which the immune system attacks the body. 什么是'混合性结缔组织病-类型的多系统自身免疫性疾病'?
- Patients experience chronic pain and inflammation as a result of the body's own immune system attacking the lining of the joints. 病人遭受慢性疼痛和炎症，作为机体自身免疫系统的一种结果是关节内层的发病。
- Autoimmune hemolytic anemia (AIHA) is a type of hemolytic anemia where the body's immune system attacks its own red blood cells (RBCs), leading to their destruction (hemolysis). 什么是'自身免疫性溶血性贫血-贫血引起的人体免疫系统的攻击红细胞'?
- Multiple sclerosis is an autoimmune disease where the immune system attacks the central nervous system. In the relapsing remitting form, new symptoms occur in discrete attacks. 多发性硬化（MS）是一种自身免疫性疾病，表现为免疫系统攻击中枢神经系统。复发-缓解型多发性硬化的新的症状出现于离散性攻击中。
- Japan Kumamoto University researchers involved in this international team thus speculated that happen are not the variability of HIV, so people can escape the immune system attacks. 日本熊本大学研究人员参与的这个国际小组由此推测，是不是艾滋病病毒发生了变异，因此能躲过人免疫系统的攻击。
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- The immune system attacks foreign cells - be they tumor cells, virally infected, or donated by another person - when T lymphocytes recognize antigenic peptides displayed on the cell surface. 当T淋巴细胞识别出细胞表面存在抗原多肽时，免疫系统便将其认为异种细胞，并开始攻击，这些异种细胞包括肿瘤细胞，病毒感染的细胞和来源于捐赠人的细胞。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He said he used this system in the year dot. 他说他很久以前用过这个系统。
- Our manager is conversant with account system. 我们的经理精通会计制度。
- The system can translate English into Chinese. 这个系统能将英语译为汉语。
