Secu
abbr. 标准电子控制单元（Standard Electronic Control Unit）
🗣️ 情景例句
Fifth word, seven.
第五个字是"seven。
I met one of the newscasters over at the television station.
我在电视公司遇到一位新闻播音员。
At that time, however, she was not only the largest ship that had ever been built, but was regarded as unsinkable,
当时，这艘轮船不仅是造船史上建造的最大的一艘船，而且也被认为是不会沉没的。