所以我下定决心要学好英语用英文怎么说
时间：
"I have made a firm resolution to learn Engpsh."
来源：下定决心 (to make a firm resolution) 是一个固定短语，表示决定做某事的意思。
英文例句：
I have made a firm resolution to exercise every day.
She made a firm resolution to quit smoking.
中文翻译：
我下定决心每天锻炼。
她下定决心戒烟。
来源：下定决心 (to make a firm resolution) 是一个固定短语，表示决定做某事的意思。
英文例句：
I have made a firm resolution to exercise every day.
She made a firm resolution to quit smoking.
中文翻译：
我下定决心每天锻炼。
她下定决心戒烟。