start at的用法和样例：
例句
- Astronomers at St Andrews University last week published a similar theory to Pendry's but one derived from different research originating in the study of black holes.
圣安德鲁斯大学的天文学家上周发表了一篇与泼恩德利的论文类似的论文，但它起源于不同的研究，而后者又起始于对黑洞的研究。 - The exact mechanisms involved are still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never prevent all cancers.
虽然其中确切的机制仍然是个迷，但许多癌症起始于基因水平的可能暗示着我们将不能阻止所有癌症的发生。
词汇搭配
- start at the wrong end 方法不对头地试干(一...
- start at score 全速起跑
- start at scratch 从起跑线开始(从头做...
- at the very start 一开始
