Formycin
间型霉素
🗣️ 情景例句
She had to work her way through law school.
她必须半工半读学法律。
It will help me understand the point you are trying to make.
这会帮助我了解你们的重点。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。