您要查找的是不是：
- two migratory pests “两迁”害虫
- Either of two migratory sandpipers(Calidris canutus or C.tenuirostris)that breed in Arctic regions. 红腹滨鹬在北极地区繁殖的两种迁徙鹬的任一种(红腹滨鹬或大滨鹬)
- Either of two migratory sandpipers(Calidris canutus or C. tenuirostris) that breed in Arctic regions. 红腹滨鹬在北极地区繁殖的两种迁徙鹬的任一种（红腹滨鹬或大滨鹬）。
- The occurrences and catastrophes of migratory pests connected with the habitude of their sources, the patterns of migrations, the taking-off and landing mechanisms in most inseparable associations. 迁飞性害虫的发生和灾变与其虫源性质、迁飞规律、起飞降落机制等有着不可分割的联系，而起飞降落机制是这些因子中作用最大的一个，也是决定危害或灾变程度最关键的因素之一。
- Locusts, Migratory Pests and Emergency Operations Group; 蝗虫、迁移害虫和紧急作业组;
- The two systems of government are polar opposites. 这两种政体正好相反。
- The business is owned by two partners. 这家商行为两名合伙人所拥有。
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
- The meat marinated in the brine for two days. 这块肉在盐水里泡了两天。
- At that time he had two helpers. 当时他有两个助手。
- Kindly send us two samples of each class quote for. 报价时，请对每一个等级的各寄两个样品。
- The two boys decided to play truant and go fishing. 这两个男孩决定逃学去钓鱼。
- A small adjustment will equalize the temperature in the two rooms. 稍作些调节就会使两间房内的温度相等。
- People in this locality used to take two meals a day. 这儿的居民过去每天吃两餐饭。
- He is out and about now after two weeks in hospital. 在医院住了两个礼拜後，现在他能外出走动了。
- He joined the two pieces of wood together with glue. 他用胶水将这两块木料黏在一起。
- The captain ordered two flags to be placed fore and aft. 船长吩咐在船头和船尾各挂一面旗子。
- The doctor is hoping to find two auxiliaries to work under him. 这位医生希望能找到两名帮他工作的助手。
- His two great interests in life are music and painting. 音乐和绘画是他生活中的两大嗜好。
- The two of them were necking on a park bench. 他们俩在公园的长凳上拥抱亲吻。
