秒钟

• second clock

例句

1. 中央C音相当於每秒钟振动256次。
   Middle C is equivalent to 256 vibrations per second.
2. 30秒钟後发射升空。
   Blast-off is in 30 seconds.
3. 大气球注入压缩空气後，几秒钟就充足了气。
   With a supply of compressed air the large balloon inflated in a matter of seconds.
4. 在赛跑时让年龄小的男生提早了10秒钟起跑。
   The smaller boys were given a start of 10 seconds in the race.
5. 他比其他运动员早10秒钟到达终点。
   He beat the other runners by a margin of ten seconds.