en-3 This user can read and write fluently in English.
zh-N 這名使用者之母語為漢語
ja-N このユーザは母語として日本語を読み書きします。
de-1 Dieser Benutzer hat grundlegende Deutschkenntnisse.
fr-1 Cette personne peut contribuer avec un niveau élémentaire de français.
la-1 Hic usor simplice Latinitate contribuere potest.

F.Adler (Wikipedia)—My user page in Wikipedia.

I'm participating in the IB Diploma programme, taking 4 HLs (mathematics, physics, chemistry, and economics). Mainly writing in IB Physics category. If you find any grammar mistakes in the part I wrote (I think there are dozens of mistakes in use of the article), please just...correct them. Thanks :)