1.
acquire proficiency in math.
在数学上达到熟练水平
2.
The Study of Bilingual Inhibitory Control Ability and Its Mechanism in Different Proficient Levels Bilingual;
不同熟练水平双语者双语抑制控制能力及其机制的实验研究
3.
A smooth sea never made a skillful mariner.
平静的大海决不能造就出熟练的水手。
4.
Sailor, esp one in a navy below the rank of an officer
（熟练的）水手，海员
5.
a very amateurish job; inexpert but conscientious efforts; an unskilled painting.
很不专业的工作；虽不熟练但很尽责的工作；业余水平的画儿。
6.
English CET 6 or above, good command of both written and spoken English.
英语六级或以上水平，可以熟练地进行口头和书面交流。
7.
When they acquire sufficient proficiency in the language, they are channeled to the mainstream bridging class.
如果学生的英语水平达到一定的熟练水准，他们将会被安排到主流班学习。
8.
Average earnings for unskilled workers are decreasing now.
非熟练工人的平均工资现今正在降低。
9.
They speak clearly and know their job well and I'm only talking about ordinary service personnel,this is a good indication of how competitive the young people in Shangnai are.
动作熟练利落，说话清楚明白，普通的服务生都有这样水平，上海年轻人的竞争力可想而知。
10.
He manipulated the sails like a sailor.
他像水手般熟练地操纵着船帆。
11.
A skilled mechanic earns decent wages.
熟练的机械工有相当不错的薪水。
12.
unskilled industrial worker
非熟练工人 非熟练工人
13.
skilled labour and unskilled labour
熟练劳动与非熟练劳动
14.
A smooth sea never make a skilful mariner.
风平浪静练不出好水手。
15.
children become expert at holding their breath under water,
孩子们已经能熟练地在水下屏住呼吸了，
16.
highly skilled or proficient a master plumber.
非常熟练的或精通的一名优秀的水管工人。
17.
An inexperienced sailor; a landlubber.
不熟练的海员一个没有经验的海员；外行水手
18.
"Bailian": A Platform for Programming Skill Development and Evaluation;
“百练”:一个程序设计技能训练与水平测试平台