Reach: to communicate with sb, especially by telephone (尤指用电话)联系,与…取得联系
Do you know where I can reach him?
你知道我在哪儿能跟他联系上吗?
Unpredictable: that cannot be predicted because it changes a lot or depends on too many different things 无法预言的;不可预测的;难以预料的
unpredictable weather
变幻莫测的天气
The result is entirely unpredictable.
结果是完全无法预料的.
Timely: happening at exactly the right time 及时的;适时的
A nasty incident was prevented by the timely arrival of the police.
警察的及时到来阻止了一次严重事故.
This has been a timely reminder to us all.
对我们大家来说这个提醒非常及时.
Remainder: the remaining people, things or time 其他人员;剩余物;剩余时间
I kept some of his books and gave away the remainder.
我保留了一些他的书,其他的都送了人.