periods的读音 periods中文意思

英音  ['pɪrɪədz] 
美音  ['pɪrɪrdz] 
n. 周期;时期( period的名词复数 );(一段)时间;学时;句号
periods 用法和例句
Is its meaning the same as in earlier periods ?
其含义是与其早先的各个时期相同吗?
Some funds have lock-ins or long redemption notice periods .
一些基金设有投资锁定期或较长的赎回通知时间段。
Like trees , stalagmites are often composed of concentric layers that represent annual growth periods .
同树木一样,石笋通常也有能显示其年生长周期的年轮。
If everyone 's putting periods at the end of their sentences , put yours in the middle of words .
如果大家都把句号放在句尾,那自己就把句号放在句中。
Many schools of paintings were in these periods .
在这个时期产生了许多绘画学派。