Reluctant = Unwilling. Hesitant.

気がすすまない。〜したがらない。

Since I hate going to the dentist, I'm always reluctant to go.

Dazzle = To overpower with light. To confound with beauty or cleverness.

強い光で目をくらませる。美貌、聡明さで圧倒する。

The young girl dazzled everyone with her beauty.

Habit = A thing often done easily.

くせ。習慣。

When I am thinking about something, I have a habit of scratching my head.

Hairdo = Hair style or the way one sets their hair.

ヘアスタイル、調髪。

Recently a new hairdo costs about 10,000 yen for women and that's expensive.

Cheerful = Happy, bright or vibrant.

快活な、（人を）元気にするような。

Everybody likes a cheerful person especially in the morning.

Swat = To slap or a sharp blow.

たたく、ぴしゃりと打つ。

A summer pastime is to swat flies.

Whopper = Something really big.

とてつもなく大きい。

Recently I caught an 18 inch fish. It was a real whopper.

Cheer up!= To urge someone to be happy or to change their mood.

元気を出せ！

Cheer up! Things can't be that bad.

A lucky break = Something good happens by chance.

運がいい。ついてる。

I was cleaning out my closet and I found a 10,000 yen note. That was a lucky break.

To grasp. = To grip or to comprehend.

つかむ。理解する。

Kanji is very difficult to grasp.