And one more climber made that list and set another record on Thursday, reported SST director Tashi Lakpa Sherpa.

据 Seven Summit Treks 公司负责人扎西·拉坎普·夏尔巴报道，周四，又有一名登山者登上了这份名单，并创造了另一项纪录。

So I'll call that SST. SS-- sum of squares total.

所以我称之为SST。SS - 总平方和。

At the time, the best Boeing engineers were busy working on the first American  supersonic transport (SST), the Boeing 2707.

当时，最优秀的波音工程师正忙于研制美国第一架超音速运输机 (SST)，即波音 2707。