| 1. | This is the catch in designing planes .
这是在设计飞机中的棘手难题。 |
| 2. | Last-minute doubts were assailing her .
最后一分钟中的犹豫涌上心头。 |
| 3. | The mathematics of the theory is too formidable .
理论中的数学太难。 |
| 4. | Peter could see the coffin amid the smoke .
彼得能看见烟雾中的棺材。 |
| 5. | A friend in need is a friend indeed .
患难中的朋友，才是真正的朋友。 |
| 6. | The burning within his chest subsided .
他胸腔中的烧炙感慢慢消失了。 |
| 7. | One of them is still working very hard .
他们中的一人仍在勤奋工作。 |
| 8. | He is recording music from the radio .
他正录下无线电广播中的音乐。 |
| 9. | She combed the mud out of the dog 's fur .
她梳去狗的皮毛中的泥土。 |
| 10. | Beethoven was a phenomenon among musicians .
贝多芬是音乐家中的奇才。 |
