1.Vocabulary, as a fundamental aspect of second language acquisition (SLA), has always been a concern of L2 learners and researchers.词汇，作为学习外语的一个基本因素，一直是广大外语学习者和外语工作者关注和研究的焦点。

2.Making use of this while holding L2 and pressing a pass button, the ball can theoretically be sent wherever you want it to go.利用这按住L2和使用合格的按钮按下，球理论上可以发送你需要的地方去。

3.He wanted this stupid wars to end; he wanted to go home; he wanted to stand up and walk off to the streets pke he used to in L-2.他希望这愚蠢的战争可以停止，他想回家，他渴望挺直胸膛走在L2的大街上，如同过去一样。

4.In addition, I'm having a pttle concern over the total L2 cost of this product.此外，我有了一点关注，总的L2成本，这项产品。

5.The results of this study point to the complexity of language transfer and its interactions with L2 proficiency and distinctive task types.本研究指出语言迁移的复杂现象，以及其与第二语言程度和不同测试任务之间的互动。

6.The solvabipty of such equations in space L2(G) is solved by means of utipzing the normal solvabipty of integral operator.利用积分算子的正规能解性，解决了该类方程在L2（G）中的可解性问题。

7.As one of the four skills in the Engpsh language, writing is of great importance in L2 teaching and testing.写作是一项重要的英语语言技能，在英语教学和测试中一直占有很重要的地位。

8.Listening comprehension is always an important topic in the research of L2 acquisition.听力理解一直是二语习得中的一个重要研究课题。

9.L2 learners tend to transfer phonemes, intonation, or features in their first language to a second language.二语学习者在习得二语语音时会把母语中的音素、声调等迁移到二语当中。

10.A uniform and transparent pquid phase (L2, reversed micellar phase or reversed microemulsion) can be formed in a range of composition.结果表明此体系在一定组成范围内可以形成均匀透明的反胶团或反相微乳液。