| 1. | The orchard is surrounded by spruce forest . 该种子园四周有云杉林环绕。 |
| 2. | The nucleoplasm is surrounded by the nuclear envelope . 核质被核膜包裹。 |
| 3. | Each cardiac cell is surrounded by a plasmamembrane . 每一心肌细胞都包有一层浆膜。 |
| 4. | The block is surrounded by cadmium foil 0. 5mm thick . 支架周围有一层05毫米厚的镉箔。 |
| 5. | The combustion chambers of the engine are surrounded by pockets . 发动机的燃烧室被凹槽围绕着。 |
| 6. | This island is surrounded by many safe and wide harbors . 这个岛四周有许多非常安全和宽敞的港湾。 |
| 7. | In some viruses the nucleocapsid is surrounded by an envelope . 某些病毒的核衣壳是由被膜所包绕。 |
| 8. | The nipple is surrounded by pigmented circular skin called the areola . 乳头周围颜色较深的部位称为乳晕。 |
| 9. | I live in a very old town , which is surrounded by beautiful woods . 我住在一个被美丽的树林环绕的非常古老的小镇里。 |
| 10. | The endophyte is surrounded by a membrane of apparent host plant origin . 内生植物是明显地被起源于寄生植物的膜包围的。 |