I began to worry about her, as at that time a park full of strangers was not a good place for small kids to play alone.
我开始担心她，因为当时公园里满是陌生人，小孩子一个人玩耍并不安全。
One key finding in the study is that it is not the warming of the ocean alone that reduces cloudiness -- a weakening of the trade winds also appears to play a critical role.
研究中还有一个关键发现就是不仅海洋的变暖会减少云层数量，信风的日益减弱似乎也扮演着关键角色。
Sound: play open strings alone; play slow scales, sustaining a 20- to 30-second bow; practice everything in the lower or upper half; or watch your contact point in the mirror.
音色︰只用空弦拉奏；慢慢地拉奏音阶，一弓维持在20-30秒；所有以上半弓或下半弓练习；或对着镜子看（弓的）接触点。
Of course! Maybe another person had thought it was a play toy and brought it home with him or he left it alone and someone else took it, but he didn't know who.
当然啦，也许别的人以为那是玩具，就把它带回家，或是他随便放，不晓得谁把它拿走了。
the mere act of tossing someone a significant glance can be considered flirting and, for that reason alone, men play an equal role in the drama.
仅仅把给某人抛个望穿秋水的媚眼算作调情的话，单说这条原因的话，男人们扮演了同样的角色。
The added RAM alone probably makes a huge difference — if you have ever added memory to a Mac you’ll know how much OS X loves it some extra gigs to play around in.
扩充的额外内存会有很大的不同——如果你曾经给Mac机添加过内存，那你应该知道这对提升MacOSX系统的效率是多么有效。
However, these research findings indicate that poor oral hygiene alone did not account for the association between ra and gum disease, suggesting that other factors may play a role as well.
尽管如此，研究发现，不良的口腔卫生并不能将RA和牙周疾病联系起来，这提示了，可能还存在另外一些致病因素。
I want to learn to play piano, which is a little too late for my age, I also want to travel to many places, but my parents never let me travel alone, because they think it is dangerous.
我想要学钢琴，这对我的年龄来说有点晚，我也想要去很多旅游，但是父母不让我单独去，因为他们觉得危险。
Here there is a beautiful group who involve even those who play less and there are fans who have never left me alone.
这是个美好的团队，即使是上场较少的球员也很有归属感。
The traditional performance form of Hezhou Xianxiao is as follows: the performer (used to be a blind person) has to hold a three-stringed lute and play and sing by him/herself alone.
河州贤孝的传统表演形式为一人（过去主要是盲人）手持三弦，自弹说唱。
Based on this American study alone, it's too early to say for sure whether girls are more at risk than boys, but we do know girls tend to be less active than boys which could play a part.
仅在这家美国研究的基础上，就很肯定地说女孩比男孩的风险是否更多，还为时过早，但我们知道女孩似乎没男孩积极，这一点可以是一部分原因。
Based on this American study alone, it's too early to say for sure whether girls are more at risk than boys, but we do know girls tend to be less active than boys which could play a part.
仅在这家美国研究的基础上，就很肯定地说女孩比男孩的风险是否更多，还为时过早，但我们知道女孩似乎没男孩积极，这一点可以是一部分原因。
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