by iteslf的用法和樣例：
例句
- By means of radio links, the computer automatically guides both interceptor aircraft and missiles to their targets.
藉助於收音機鏈接，計算機自動地領隊到他們的目標的阻止的人飛機和導彈。 - Generally, repetition of material is constrained by the size of the linguistic unit that a person can process in an automatic or nearly automatic fashion.
通常來說，本測試中複述材料是由語言單元的長度限定的，使得人們能自動或近似於自動地處理句子。
