n. 因素;<数>因子;代理人;
vt. 把…因素包括进去;[数学]分解…的因子,将…分解成因子;以代理商(或管家等)的身份行事,做代理商(或管家);
vi. 做代理商(或管家);
🗣️ 情景例句
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
They had to cut down a lot of trees to make room for farms.
他们为了为农场增加空间不得不砍倒很多树。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.