| 61. | Will you sign our petition against using animals in scientific experiments? |
| 你愿意在我们反对使用动物进行科学实验的请愿书上签名吗？
|
| 62. | The red sign indicates a caution. |
| 这个红色标记表示警告。
|
| 63. | I want to check with my secretary before I sign the papers. |
| 我要同秘书商量一下再签署这些文件。
|
| 64. | Deaf people communicate by sign language. |
| 聋子用手势语交际。
|
| 65. | She said, in her defence, that she had not seen the " No Parking " sign . |
| 她辩解说她没有看见“不准停车”的告示牌。
|
| 66. | In algebra, the sign " X " usually denotes an unknown quantity. |
| 在代数里，符号“X”常用以表示未知数。
|
| 67. | They shot off their weapons as a sign of victory. |
| 他们朝天鸣枪 ，以示胜利。
|
| 68. | The reading room has a huge [large] sign "silence" |
| 阅览室有一块很大的牌子“静”
|
| 69. | The car has the sign "No Smoking" |
| 这辆汽车上有“禁止抽烟”的牌子
|
| 70. | Can't you read that sign ? It says "No smoking" |
| 难道你看不懂那块告示牌吗？上面写着“禁止吸烟”
|