重點講解：
1. even if 即使；盡管；縱然；
例句：They'll stand by you even if you don't succeed.
即使你不成功他們也會支持你Ez;Rz.w|!Y+]45M。
2. be exposed to 使暴露于（險境）；使遭受（危險或不快）；
例句：Women who are exposed to mercury, cadmium, or vinyl chloride before conceiving seem to be especially likely to have autistic kids.
女性在懷孕期間接觸汞、鎘或氯乙烯很有可能會生出自閉癥患兒m+230uTiPrntBX(=c&NM。
3. start out 起初是…；
例句：He started out to fix the car himself, but in the end, he had to ask for help.
起初他本打算自己修車，可最后他還是不得不請人幫忙.INYCE!G8U#1W^a8FsW。
4. leave alone 聽…自便；隨…去；不打擾；
例句：Some people need to confront a traumatic past; others find it better to leave it alone.
有人需要直面過去的創傷，有人則覺得不去想它為妙P7ot-kF!*9N*QhL9WtP。