Old English þærbig "thus, by means of or because of that;" see there + by. Similar formation in Old Frisian therbi, Middle Low German darbi, German dabei, Dutch daarbij.
双语例句
1. The party thereby lays itself open to charges of conflict of interest.
该党因此难免被人指责有利益冲突。
来自柯林斯例句
2. Regular exercise strengthens the heart, thereby reducing the risk of heart attack.
经常锻炼可以增强心脏机能，从而减少心脏病发作的危险。
来自《权威词典》
3. He became a British citizen, thereby gaining the right to vote.
他成了英国公民, 因而得到了投票权.
来自《简明英汉词典》
4. I gave him my advice; I hope he may profit thereby.
