The fourth line is particularly troubling because not only is the apostrophe missing but so is the substitution parameter.

第四行特别麻烦，因为不仅遗漏了撇号，而且还遗漏了替代参数！

youdao

Despite not troubling Hull's line in the second half, their outstanding defence kept the hosts scoreless.

BBC: Last Updated: Friday, 3 March 2006, 21:39 GMT

Also troubling for Mr Bush is that some close associates have strayed from the official line on Iraq.

ECONOMIST: Bush on the back foot, Kerry on a roll | The