该同意句（英语的）

try```
很简单嘛```

try one's best

In the boy's relay race,the four boys did their best to win the first place.
In the boy's relay race,the four boys try their best to win the first place.
try one*s best to do sth. means 尽全力做某事,and do one*s best to
do sth has the same meaning.

achieved
我帮你问过澳大利亚的朋友了,他说的!!!
肯定对