Foreign tourists feel happily secure while visiting the city.

外国游客访问这个城市时都很有安全感。

4.vulnerable adj.易受伤的, 脆弱的, 敏感的

例句：He volunteered to protect her as she looked so vulnerable.

她看上去很脆弱, 他就主动去保护她。

5.consequence n.结果, 后果

例句：Nobody can tell what the consequences may be.

没有人能说出可能的后果。

6.freaking adj.(用以加强语气)该死的，使人憎厌的，糟透的

7.otherwise conj.否则; 要不然

例句：You'd better go now, otherwise you'll miss the train.

你最好现在就走, 要不然就赶不上火车了。

1.What I expect we are going to be seeing in a few months, and what's already technically possible, is for an attacker to gain access to a call centre.

gain access to可以获得;进入

例句：Students must have/gain/ get access to a good library.

学生必须有机会利用好的图书馆。

2.When I caught up with the Grug he was in Malaysia for the Hack In The Box Security Conference where he both gave a key note speech and held training sessions for security professionals.

catch up with追上, 赶上

例句：You walk on and I'll catch up with you later.

你往前走吧, 我一会儿就赶上你了。

对…产生坏影响,对...产生预期的坏影响(或恶果)