watch out for密切注意；戒备，提防
wear out穿破，用坏；（使）疲乏，（使）耗尽
What about … ？（征求意见时）怎么样？
What if … ？如果……将来会怎么？
whether … or是……还是……，不管……还是
wipe out彻底摧毁，消灭
with regard to关于，至于
with respect to关于，至于
with the exception of除……之外
Without question毫无疑问，毫无异议
work out算出；想出，制定出
would rather宁愿，宁可
would rather…than宁愿……（而不愿）
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