查询词典 put sth down to sth

The distinction is not always clear and there can be recommendations only, not rules. When the reference is to sth regular or habitual, the use of do for neg and interr is to be preferred. When the reference is to a particular occasion, constructions without do, and, in colloq style, with got, are to be preferred.

用do与不用do的区别不太明确，并无规则可循，仅有下列提示可供参考：指通常或习惯上的动作时，在否定和疑问句中多用do；指一特殊事例时，多不用do，并且在口语中多与got连用。

When the reference isto sth regular or habitual, the use of do for neg and interr is to bepreferred. When the reference is to a particular occasion, constructionswithout do, and, in colloq style, with got, are to be preferred.

用 do 与不用 do 的区别不太明确，并无规则可循，仅有下列提示可供参考：指通常或习惯上的动作时，在否定和疑问句中多用 do ；指一特殊事例时，多不用 do ，并且在口语中多与 got 连用。

Introduce sb./sth to sb.

向某人介绍某人/某物

Introduce sb./sth. to sb.

把某人/某事介绍给某人

Introduce sb to sth.

给…人介绍…东西

Ask/invite sb. to do sth.

请/邀请某人做某事

Invite sb. to do sth.

邀请某人做某事如： 11。

Tell/ask/want/encourage/invite/ sb. to do sth.

告诉、叫、想、鼓励、邀请某人做某事 4。

Invite sb. to do sth. with sb.

邀请某人与……一起做某事

Invite sb. to do sth= ask sb.

to do 邀请某人做某事 3。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。