The Sahara is a sandy desert with great sand hills.
撒哈拉沙漠是一个沙质沙漠，有很多沙丘。
Hi, Sandy. It's Mary... I need to book some time with Mr. Yang.
嗨，桑迪。我是玛丽。我需要和杨先生约个时间。
Sandy not only gave me some advice but (also) helped me with English.
桑迪不仅给了我一些建议，而且还帮我学英语。
Sandy has trouble with her math homework.
珊蒂写数学作业有困难。
It is new and modern with magnificent sandy beaches.
它是新的，与现代波澜壮阔的沙滩。
Experimental investigation of heat and water transfer of sandy soil with air convection was done.
实验上，对大气对流环境条件下土壤内热、水分迁移过程进行了研究。
Experimental investigation of heat and water transfer of sandy soil with air convection was done.
实验上，对大气对流环境条件下土壤内热、水分迁移过程进行了研究。
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