1.做实验 Perform experiment / conduct experiment/ carry out experiment
2.邀请…做… To invite somebody to do something
3.吃饭 TO have diner / have meal
4. …的另一种说法one the other hand of something
5. 变湿 To get wet / get damp / get drenched
6. 科学方法 scientific method
7. 观察某人在做/做了某事To observe somebody doing something / to observe somebody do something
8.把…翻转To turn something over
9. 某人发生某事 Something happens to somebody / something occurs to sombody
10. 某人碰巧做某事Somebody happens to do something
11. 对…惊讶 To be surprised at something / To marvel at something / get astonished at something
12. 把…放进…里 To put something into something / dip something into something
13. 实验后 after experiment / after test
14. 观察 observation
15.坐在椅子上 TO sit on the seat / to sit on the chair / be seated on a chair / seat oneself on a chair /
16.使…翻转 To turn over something / overturn something / reverse something
17.把…带到学校来To take something / somebody to the school
18.把…弄干 make something dry / dry something
19.在…前面（外）in front of something (outer)
20.把…放在…顶部 put somthing on the top of something
21.把…从…拿开 take something away from someplace
22.拿走 take away / take off / do away with something
23.向上推在…上 push up something on something
24.八匙…eight spoons
25.把…混合 mix something up / mingle something
26空是满的反义词。empty is sthe antonym of solid / packed full
27.那汤尝起来很棒。that soup tastes so great / so delicious / so fantastic
28.你观察到别的什么了吗？did you observe anything else / have you observe anything else ?
29.我确信他会很快完成这项工作的。I am sure that he will finish this work soon
30. 那个女孩正用水装满瓶子。That girl is filling the bottle with water ./ That girl is pouring the water into the bottle .
31.空气比我想象的要强。 Air is stronger than I imagine / Air has more powerful force than that in my imagination / Air is more powerful than that that I imagine
32.这空气的力量足够强到可以托住水。The force of the air is powerful enough to hold the water
The force of the air is so powerful that it could hold the water
The air has the enough force to support the water
33.让我们用一张纸盖上桌子。Let us cover the table with one piece of paper
34.他不再来这儿了。He will no longer come here / He will not come here any more / He will not come here any longer
35.这个箱子对我来说太重了而搬不动。This box is too heavy for me to carry
This trunk is so heavy cumbersome that I can not move it on my own
The trunk is so heavy/ cumbersome that I can not life it with my own strength
The trunk is so heavy cumber that I can not carry with my personal strength
This box is too heavy/ cumbersome for me to carry / lift and move
纯手工更新翻译，希望满意并采纳，谢谢！