Clearing a surround to the orchard, will significantly reduce background pollination to very low levels . 在种子园周围只要清除出一条隔离带，便可显著地使外来传粉减到最低水平。
The walls of the sinuses are lined with endocytic cells which engulf any foreign particles that might be present in the lymph . 窦的壁衬盖着内吞细胞，这些细胞能吞食淋巴中可能出现的任何一种外来颗粒。
The original rationale for all this was the supposed need to protect the long coastlines of the americas from foreign attack . 所有这一切最早提出的基本理由，就是假想中的保卫美洲漫长海岸线不受外来攻击的需要。
She came outside the door, and even held her hand on maggie's offending head, forgetting all the griefs of the morning . 可是她还是跑到门外来，甚至还把她的手放在多琪的倔强的头上，她这时候已经忘了早晨的悲伤了。
Immigrants are often greeted with bigotry and harassment, often even from native groups that would benefit from the immigration . 外来移民往往被报之以偏见和刁难，而这种偏见和刁难又往往是出自那些得益于移民的本地集团。
Through these introductions the peach may have become wild in regions best adapted to it, but remained a cultivated exotic in other regions . 通过引种，桃在一些最适应地区可能变成野生，但在另一些地区则仍然作为外来品种植物来栽培。
On 12 july, the congolese government asked for united nations military assistance to protect the national territory of the congo against external aggression . 七月十二日，刚果政府请求联合国给予军事援助，保护刚果国土不受外来侵略。
A country's ability to chart its own economic and social destiny is significantly affected by its degree of dependence on these and other external forces . 一个国家掌握自己经济和社会命运的能力在很大程度上将取决于它对这些和其它的外来势力的依赖程度。
Exterior perils such as fire natural hazard , etc 外来危险，如火灾和自然灾害等。
Probing into the managing style of transient population 外来流动人口管理模式探索
