From a design perspective, some other choices are questionable; for example, the use of Strings to hold the operators opens up the possibility of small typos leading to erroneous results.
She insisted that, to allow proper sorting, the incoming data stream should try to keep track of the end of leading articles in title strings.
她坚持认为，要想允许适当的排列，引入的数据流就应当尝试跟踪题名字符串最前面的条目的结尾。
3
The way hashcash poses a challenge is by asking "minters" to produce strings (stamps) that when hashed with the Secure Hash Algorithm, SHA-1, have a number of leading zeros in their hash.