I am not required to take any language proficiency tests.

我没有必要去参加任何的语言水平考试。

Finally the subjects took a language proficiency test.

最后，这些实验对象们参加一次语言水平测试。

Final graduation and Language proficiency certificates.

最高学历证明和语言能力证明。

But her overall language proficiency remains that of a toddler.

但她整体语言能力仍只相当于一个蹒跚学步的孩子。

The feature is reflected in previous Japanese Language Proficiency Tests.

该特点在历年国际日本语能力测试中都有所体现。