Translation:You do not drink tea.
Romanian borrowed "ceai" from Russian, and Russian's "чай" is from Turkic. Mandarin's 茶 just seems to be a coincidence, and Arabic's "شاي" is directly from Mandarin.
In short: the word for "tea" in most languages comes from the readings of two different dialects for the Chinese word
That is what caused two distinct paths as those of English tea and Portuguese chá, for instance (one form spread through Dutch traders and the other through Portuguese traders).
Wikipedia (in its article "Tea") explains it as follows:
Most Chinese languages, such as Mandarin and Cantonese, pronounce it along the lines of cha, but Hokkien and Teochew Chinese varieties along the Southern coast of China pronounce it like teh. These two pronunciations have made their separate ways into other languages around the world.
Starting in the early 17th century, the Dutch played a dominant role in the early European tea trade via the Dutch East India Company. The Dutch borrowed the word for "tea" (thee) from Min Chinese, either through trade directly from Hokkien speakers in Formosa where they had established a port, or from Malay traders in Bantam, Java. The Dutch then introduced to other European languages this Min pronunciation for tea, including English tea, French thé, Spanish té, and German Tee. This pronunciation is also the most common form worldwide. The Cha pronunciation came from the Cantonese chàh of Guangzhou (Canton) and the ports of Hong Kong and Macau, which were also major points of contact, especially with the Portuguese traders who settled Macau in the 16th century. The Portuguese adopted the Cantonese pronunciation "chá", and spread it to India. However, the Korean and Japanese pronunciations of cha were not from Cantonese, but were borrowed into Korean and Japanese during earlier periods of Chinese history.
A third form, the increasingly widespread chai, came from Persian چای [t͡ʃɒːi] chay. Both the châ and chây forms are found in Persian dictionaries. They are derived from the Northern Chinese pronunciation of chá, which passed overland to Central Asia and Persia, where it picked up the Persian grammatical suffix -yi before passing on to Russian as чай ([tɕæj], chay), Arabic as شاي (pronounced shay [ʃæiː] due to the lack of a /t͡ʃ/ sound in Arabic), Urdu as چائے chay, Hindi as चाय chāy, Turkish as çay, etc.
Have a better look at the etymology there: