100% always,
I'm always at home in the evenings.
晚上我总是(100%)在家里。
90% usually,
I usually wake up early.
我通常(90%)醒得很早。
80% often,
Bill often goes off halfcocked.
比尔经常(80%)是未经准备而行事。
50% sometimes,
he sometimes makes mistakes.
他偶而(50%)也会犯错。
10% rarely,seldom,
I rarely(50%) have short drinks.
我很少喝烈性酒.
The apple tree is seldom fruitful.
这棵苹果树很少(10%)结果。
0% never
We never flinch from difficulties.
在困难面前我们决不(0%)退缩。
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seldom
妮可很少迟到。
rarely
妮可难得迟到。
所以seldom的频率高一点。
参考资料:http://easytest.lib.ksu.edu.tw/Courses/knowletech/u1300.asp