I’ll go to Taichung to see you sometime next summer. 明年夏天某个时候，我去台中看你。

some time: 一段时间

I stayed in Taichung (for) some time last summer. 去年夏天，我在台中待过一段时间。

sometimes: 有时候

Sometimes I go to Taichung for business. 有时候我去台中出差。

4.A study for the Center for Disease Control found that babies fed this way were the most exposed to the chemical, consuming up to 13 micrograms of BPA each day per kilogram of body weight.

expose to暴露于

例句：Don't expose it to the sun.

谨防日晒。

Don't expose undeveloped film to light.

不要把未冲洗的胶卷暴露在光照下。

5.So we drew up to them, and I did ask them if they needed any help, and their reply was a very ecstatic yes.

draw up(使)停下

例句：We saw a truck drawing up to our building.

我们看到一辆卡车开到我们楼前停住。

She drew up her horse at the top of the hill.

她在小山顶上突然把马勒住。

6.The allegations stem from a Champions League match between Real Madrid and Ajax Amsterdam on Tuesday.

stem from来自, 起源于; 由…造成

例句：The present wave of strikes stems from discontent among the lower-paid.

当前的罢工浪潮起因于低工资雇员的不满情绪。