Generally quite frustrated that they are not as proficient at swimming as in other sports. Sometime this frustration is very strong and is bubbling just below the surface!

一般都会对不能像精通其他运动一样掌握游泳很沮丧。这种沮丧感有时很强烈，(后半句不会，不知指什么)！

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Considering learning another language? Check out the infographic below to determine how long it'll take you to become proficient in your chosen tongue.

想学一门新的语言吗？查一查下面的图表，看看你想学的语言要画多长时间才能精通吧。

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The average scores were categorized at each grade level into four groups: below basic, basic, proficient, and advanced.

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Under the four-tier system, teachers will be rated exemplary, proficient, developing or below standard.

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