至少 + Number / 至少 + Verb Phrase
至少 means "at least," setting a minimum threshold for a quantity or condition. It is placed before the number or verb phrase it modifies. Use it to indicate the lowest acceptable amount or frequency.
学一门语言,至少需要几个月的时间。
Xué yì mén yǔyán, zhìshǎo xūyào jǐ gè yuè de shíjiān.
Learning a language takes at least a few months.
你至少应该给她打个电话。
Nǐ zhìshǎo yīnggāi gěi tā dǎ gè diànhuà.
You should at least give her a call.
这次旅行至少要带三套衣服。
Zhè cì lǚxíng zhìshǎo yào dài sān tào yīfú.
You need to bring at least three sets of clothes for this trip.