您要查找的是不是：
- Recently they have laid an underground pipeline. 最近他们铺设了一条地下管道。
- We have a biology lesson tomorrow. 明天我们有堂生物学课。
- The missile is delivered from underground. 这种导弹由地下发射。
- They were suspected of underground activities. 他们被怀疑进行地下活动。
- Moles stay underground most of the time. 钱鼠大部分时间住在地下。
- Biology has practical applications. 生物学有实用性。
- He went underground to avoid capture. 他转入秘密工作以免被捕。
- The cavers discovered a vast underground chamber. 探穴人发现了一个地下大洞穴。
- The quickest way to go round the city is by underground train. 在这个城市四处走动最快的办法就是乘坐地铁。
- The mole bored (its way) underground. 鼹鼠在地下挖掘(路)。
- The prisoner escaped by digging an underground tunnel. 囚犯挖了一条地道逃跑了。
- First and foremost, I think you should work harder on your biology. 首先，我认为你应该多在生物学上下功夫。
- Some miners were trapped underground after the collapse. 塌方后，有些矿工被困在地下。
- He is knowledgeable about the biology of the honeybee. 他对蜜蜂的生活规律知之甚多。
- The biology paper (ie in an examination) was a real stinker. 生物试卷真难答。
- There is an underground car park near the supermarket. 这个超市附近有一个地下停车场。
- This is at root a question of biology. 这根本上是一个生物学问题。
- The revolutionist eluded capture for weeks by hiding underground. 那位革命者为避免被捕在地下躲藏了几个星期。
- He joined the underground to fight against the fascists. 他参加了地下组织与法西斯作战。
- Her school report shows that she is weak at/in arithmetic and biology. 从她的学习成绩单可看出她算术和生物成绩差。
