1. Then he went ahead to clone an adult sheep.
    后来他又进一步克隆了一只成年绵羊。

2. His mother could not approve of her son's affection for a woman she had never met, but Bartholdi went ahead and married his love in 1876.
    他母亲不赞成自己的儿子和一个她没有见过的女子恋爱，然而巴托尔迪不为所动，毅然和心中所爱于1876年结为伉俪。

3. How fast these nations should push ahead is a matter of debate.
    这些国家应以多快的速度向前发展是人们争论的一个问题。

4. Americans believe no one stands still. If you are not moving ahead, you are falling behind.
    美国人认为没有人会停止不前。如果你不求进取，就会落伍。

5. At near the speed of sound, we were flying ahead of our engine's roar.
    由于速度几近音速，我们把引擎的轰鸣声甩在了后面，

6. My guest walked ahead toward the restaurant with newly found friends. The blind man and I followed.
    我的客人与几位新交的朋友径直走进了餐馆，我和这位盲人跟了进去。

7. Just ahead of us there was a huge fissure.
    离我们不远处，出现一个大裂缝。

8. But by now the Thermopylae was over five hundred miles ahead.
    但此时，"赛姆皮雷"号早已在500多英里之遥了。

9. "Look!" she suddenly called out, pointing ahead.
    “看！”她突然大喊道，指着前方。

10. He says, "I look straight ahead like a horse, walk to the taxi that I want, and ask, ‘Who owns this car?’"
    他说："我高昂着头，径直走向我看中的出租车，然后问，‘这是谁的车？’"