1.
Learn to creep before you leap. Learn to walk before you run.
先学爬,再学跳. 先学走,再学跑.
2.
Children learn speech before they learn writing.
孩子先学说话后学写字。
3.
Learn to creep before you leap.
先学爬，后学跳。（循序渐进）
4.
I learn them by myself for some time,
我自己先学一段时间，
5.
Be a pupil before you become a teacher.
先做学生，然后再做先生。
6.
He that would command must serve
欲做先生,先做学生
7.
From Economic Perspective:the LIFO and the FIFO;
经济学视角:后进先出法与先进先出法
8.
From Lowood Institution, sir.
罗伍德学校，先生。
9.
One must learn from those who are more advanced before he can catch up with and surpass them.
学习先进，才有可能赶超先进。
10.
Chemical Constituents of Pedicularis cephalantha Franch and P. siphonantha Don
头花马先蒿和管花马先蒿的化学成分
11.
IMPORTANT ROLES PLAYED BY PROFESSOR HOU DEFENG IN DEVELOPING MINERAL INDUSTRIES AND EARTH SCIENCES IN CHINA;
开拓矿业、发展地学的一位先知先觉先行者——缅怀侯德封先生
12.
Children learn to creep ere they can go.
孩子要走路,先得学爬行。
13.
Mr.Ting is a grandmaster of science.
丁先生是科学大师。
14.
"I should say the first thing of all would be to get a grammar.
“应该说首先要学会语法。
15.
Mr. Ma is a man who studies linguistics.
马先生是研究语言学的。
16.
They started him in as an apprentice.
他们先叫他当学徒。
17.
-- Are you a medical student, sir?
“先生，您是医科学生吗?
18.
integrated advanced avionics
先进集成航空电子学